Tuesday, November 21, 2017
Tending Your Garden ... In Space (News Release)
If you plant it, will it grow (in space)? The answer is yes, at least for certain types of plants. The Vegetable Production System, or Veggie, was first deployed in 2013 and is capable of producing salad-type crops to provide the crew aboard the International Space Station with a palatable, nutritious, and safe source of fresh food. Veggie provides lighting and nutrient delivery, but utilizes the cabin environment for temperature control and as a source of carbon dioxide to promote growth.
This image of a red lettuce plant was taken for the VEG-03 experiment in the Columbus module by the Expedition 53 crew.
Sunday, November 12, 2017
NASA / Bill Ingalls
NASA Space Station Cargo Launches Aboard Orbital ATK Mission (Press Release)
The International Space Station will receive about 7,400 pounds of cargo, including new science and technology investigations, following the successful launch of Orbital ATK’s Cygnus spacecraft from NASA’s Wallops Flight Facility in Virginia Sunday.
Orbital ATK’s eighth contracted cargo delivery flight to the station launched at 7:19 a.m. EST on an Antares rocket from Pad 0A at Wallops, and is scheduled to arrive at the International Space Station Tuesday, Nov. 14.
This is the fifth flight of an enhanced Cygnus spacecraft, and the second using Orbital ATK’s upgraded Antares rocket. The spacecraft for this mission is named in honor of Gene Cernan, the last human to step foot on the Moon. Cernan, who passed away in January at age 82, set records for both lunar surface extravehicular activities and the longest time in lunar orbit.
Expedition 53 astronauts Paolo Nespoli of ESA (European Space Agency) and Randy Bresnik of NASA will use the space station’s robotic arm to grapple Cygnus, about 4:50 a.m. Tuesday. Cygnus will remain at the space station until Dec. 4, when the spacecraft will depart the station and deploy several CubeSats before its fiery re-entry into Earth’s atmosphere as it disposes of several tons of trash.
The resupply mission will support dozens of new and existing investigations as Expeditions 53 and 54 contribute to about 250 science and research studies.
Highlights from the new experiments will include studies on antibiotic resistance, high-speed data transmission, plant growth and improved power and communication technologies.
The E. coli AntiMicrobial Satellite (EcAMSat) mission will investigate the effect of microgravity on the antibiotic resistance of E. coli, a bacterial pathogen responsible for urinary tract infection in humans and animals. Antibiotic resistance could pose a danger to astronauts, especially since microgravity has been shown to weaken human immune response. The experiment will expose two strains of E. coli to three different doses of antibiotics; one of these strains is deficient in the gene responsible for the increased antibiotic resistance in microgravity. Results from this investigation could help determine appropriate antibiotic dosages to protect astronaut health during long-duration missions and help us understand how antibiotic effectiveness may be increased in microgravity, as well as on Earth.
The Optical Communications and Sensor Demonstration (OCSD) project will study high-speed optical transmission of data and small spacecraft proximity operations. It will test functionality of laser-based communications using CubeSats that provide a compact version of the technology.
Results from OCSD could lead to significantly enhanced communication speeds between space and Earth and a better understanding of laser communication between small satellites in low-Earth orbit.
The Biological Nitrogen Fixation in Microgravity via Rhizobium-Legume Symbiosis (Biological Nitrogen Fixation) investigation examines how low-gravity conditions affect the nitrogen fixation process of Microclover, a resilient and drought tolerant legume. The nitrogen fixation process, a process by which nitrogen in the atmosphere is converted into a usable form for living organisms, is a crucial element of any ecosystem necessary for most types of plant growth. This investigation could provide information on the space viability of the legume’s ability to use and recycle nutrients and give researchers a better understanding of this plant’s potential uses on Earth.
As space exploration increases, so will the need for improved power and communication technologies. The Integrated Solar Array and Reflectarray Antenna (ISARA), a hybrid solar power panel and communication solar antenna that can send and receive messages, tests the use of this technology in CubeSat-based environmental monitoring. ISARA may provide a solution for sending and receiving information to and from faraway destinations, both on Earth and in space.
For more than 17 years, humans have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and demonstrating new technologies, making research breakthroughs not possible on Earth that will enable long-duration human and robotic exploration into deep space. A global endeavor, more than 200 people from 18 countries have visited the unique microgravity laboratory that has hosted more than 2,100 research investigations from researchers in more than 95 countries.
Saturday, November 11, 2017
NASA / Carla Thomas
Sierra Nevada Corporation’s Dream Chaser Achieves Successful Free Flight at NASA Armstrong (News Release)
Sierra Nevada Corp.’s Dream Chaser spacecraft underwent a successful free-flight test on November 11, 2017 at NASA’s Armstrong Flight Research Center, Edwards, California. The test verified and validated the performance of the Dream Chaser in the critical final approach and landing phase of flight, meeting expected models for a future return from the International Space Station.
The flight test helped advance the vehicle under NASA’s Commercial Crew Program space act agreement, as well as helped prepare the vehicle for service under NASA’s Commercial Resupply Services 2 program. The testing will validate the aerodynamic properties, flight software and control system performance of the Dream Chaser.
The Dream Chaser is preparing to deliver cargo to the International Space Station beginning in 2019. The data that SNC gathered from this test campaign will help influence and inform the final design of the cargo Dream Chaser, which will fly at least six cargo delivery missions to and from the space station by 2024.
NASA / Carla Thomas
NASA / Carla Thomas
Thursday, November 9, 2017
NASA Moves Up Critical Crew Safety Launch Abort Test (News Release)
NASA’s Orion spacecraft is scheduled to undergo a design test in April 2019 of the capsule’s launch abort system (LAS), which is a rocket-powered tower on top of the crew module built to very quickly get astronauts safely away from their launch vehicle if there is a problem during ascent.
This full-stress test of the LAS, called Ascent Abort Test-2 (AA-2), will see a booster, provided by Orbital ATK, launch from Cape Canaveral Air Force Station in Florida, carrying a fully functional LAS and a 22,000-pound Orion test vehicle to an altitude of 32,000 feet at Mach 1.3 (over 1,000 miles an hour). At that point, the LAS’ powerful reverse-flow abort motor will fire, carrying the Orion test vehicle away from the missile. Timing is crucial as the abort events must match the abort timing requirements of the Orion spacecraft to the millisecond in order for the flight test data to be valid.
NASA is accelerating the timeline of the test to provide engineers with critical abort test data sooner to help validate computer models of the spacecraft’s LAS performance and system functions.
“This will be the only time we test a fully active launch abort system during ascent before we fly crew, so verifying that it works as predicted, in the event of an emergency, is a critical step before we put astronauts on board,” said Don Reed, manager of the Orion Program’s Flight Test Management Office at NASA’s Johnson Space Center in Houston. “No matter what approach you take, having to move a 22,000-pound spacecraft away quickly from a catastrophic event, like a potential rocket failure, is extremely challenging.”
The test will verify the LAS can steer the crew module and astronauts inside to safety in the event of an issue with a Space Launch System rocket when the spacecraft is under the highest aerodynamic loads it will experience during a rapid climb into or beyond orbit for deep-space missions.
The LAS is divided into two parts: the fairing assembly, which is a shell composed of a lightweight composite material that protects the capsule from the heat, wind and acoustics of the launch, ascent, and abort environments; and the launch abort tower, which includes the system’s three motors. In an emergency, those three motors – the launch abort, attitude control, and jettison motors – would work together to pull Orion away from a problem on the launch pad or during SLS first stage ascent, steering and re-orienting for LAS jettison, and pulling the LAS away from the crew module. During a normal launch, only the LAS jettison motor would fire, once Orion and the Space Launch System clear most of the atmosphere, to clear the LAS from Orion and allow the spacecraft to continue with its mission.
Engineers at several NASA centers already are building the Orion test article that has many of the design features and the same mass as the capsule that will carry crew. Because the test is designed to evaluate Orion’s launch abort capabilities, the crew module used for AA-2 will not deploy parachutes after the abort system is jettisoned, nor will it have a reaction control system with thrusters needed to help orient the capsule for a parachute-assisted descent and splashdown after the LAS is jettisoned.
The AA-2 test development and execution is a partnership between Orion Program and the Advanced Exploration Systems Division, the technology advancement organization in the Human Exploration and Operations Mission Directorate at NASA Headquarters in Washington.
NASA Johnson is responsible for producing the fully assembled and integrated crew module and separation ring, including development of unique avionics, power, software and data collection subsystems and several elements of ground support equipment.
The agency’s Langley Research Center in Hampton, Virginia, will build the primary structure of the crew module test article and a separation ring that connects the test capsule to the booster and provides space and volume for separation mechanisms and instrumentation.
Critical sensors and instruments used to gather data during the test will be provided by NASA’s Armstrong Flight Research Center in Edwards, California. The integrated test article will be delivered to NASA’s Kennedy Space Center in Florida, where it will be processed before launch.
NASA’s prime contractor, Lockheed Martin, is providing the fully functional Orion LAS, and the crew module to service module umbilical and flight design retention and release mechanisms.
In 2010, an earlier version of Orion’s LAS was tested to evaluate the performance of the system in during Abort Test Booster-1 at the White Sands Missile Range in New Mexico. For Exploration Mission-1, NASA’s first integrated flight test of Orion atop the powerful SLS -- the abort system will not be fully active since astronauts will not be inside the spacecraft. NASA is working toward a December 2019 launch for EM-1.
Wednesday, November 8, 2017
NASA Completes Review of First SLS, Orion Deep Space Exploration Mission (News Release)
NASA is providing an update on the first integrated launch of the Space Launch System (SLS) rocket and Orion spacecraft after completing a comprehensive review of the launch schedule.
This uncrewed mission, known as Exploration Mission-1 (EM-1) is a critical flight test for the agency’s human deep space exploration goals. EM-1 lays the foundation for the first crewed flight of SLS and Orion, as well as a regular cadence of missions thereafter near the Moon and beyond.
The review follows an earlier assessment where NASA evaluated the cost, risk and technical factors of adding crew to the mission, but ultimately affirmed the original plan to fly EM-1 uncrewed. NASA initiated this review as a result of the crew study and challenges related to building the core stage of the world’s most powerful rocket for the first time, issues with manufacturing and supplying Orion’s first European Service Module, and tornado damage at the agency’s Michoud Assembly Facility in New Orleans.
“While the review of the possible manufacturing and production schedule risks indicate a launch date of June 2020, the agency is managing to December 2019,” said acting NASA Administrator Robert Lightfoot. “Since several of the key risks identified have not been actually realized, we are able to put in place mitigation strategies for those risks to protect the December 2019 date.”
The majority of work on NASA’s new deep space exploration systems is on track. The agency is using lessons learned from first time builds to drive efficiencies into overall production and operations planning. To address schedule risks identified in the review, NASA established new production performance milestones for the SLS core stage to increase confidence for future hardware builds. NASA and its contractors are supporting ESA’s (European Space Agency) efforts to optimize build plans for schedule flexibility if sub-contractor deliveries for the service module are late.
NASA’s ability to meet its agency baseline commitments to EM-1 cost, which includes SLS and ground systems, currently remains within original targets. The costs for EM-1 up to a possible June 2020 launch date remain within the 15 percent limit for SLS and are slightly above for ground systems. NASA’s cost commitment for Orion is through Exploration Mission-2. With NASA’s multi-mission approach to deep space exploration, the agency has hardware in production for the first and second missions, and is gearing up for the third flight. When teams complete hardware for one flight, they’re moving on to the next.
As part of the review, NASA now plans to accelerate a test of Orion’s launch abort system ahead of EM-1, and is targeting April 2019. Known as Ascent-Abort 2, the test will validate the launch abort system’s ability to get crew to safety if needed during ascent. Moving up the test date ahead of EM-1 will reduce risk for the first flight with crew, which remains on track for 2023.
On both the rocket and spacecraft, NASA is using advanced manufacturing techniques that have helped to position the nation and U.S. companies as world leaders in this area. For example, NASA is using additive manufacturing (3-D printing) on more than 100 parts of Orion. While building the two largest core stage structures of the rocket, NASA welded the thickest structures ever joined using self-reacting friction stir welding.
SLS has completed welding on all the major structures for the mission and is on track to assemble them to form the largest rocket stage ever built and complete the EM-1 “green run,” an engine test that will fire up the core stage with all four RS-25 engines at the same time.
NASA is reusing avionics boxes from the Orion EM-1 crew module for the next flight. Avionics and electrical systems provide the “nervous system” of launch vehicles and spacecraft, linking diverse systems into a functioning whole.
For ground systems, infrastructure at NASA's Kennedy Space Center in Florida is intended to support the exploration systems including launch, flight and recovery operations. The center will be able to accommodate the evolving needs of SLS, Orion, and the rockets and spacecraft of commercial partners for more flexible, affordable, and responsive national launch capabilities.
EM-1 will demonstrate safe operations of the integrated SLS rocket and Orion spacecraft, and the agency currently is studying a deep space gateway concept with U.S. industry and space station partners for potential future missions near the Moon.
“Hardware progress continues every day for the early flights of SLS and Orion. EM-1 will mark a significant achievement for NASA, and our nation’s future of human deep space exploration,” said William Gerstenmaier, associate administrator for NASA’s Human Exploration and Operations Mission Directorate in Washington. “Our investments in SLS and Orion will take us to the Moon and beyond, advancing American leadership in space.”
Tuesday, November 7, 2017
NASA Pays Tribute to Early Space Pioneer Richard Gordon (Press Release)
The following is a statement from acting NASA Administrator Robert Lightfoot on the passing of former NASA astronaut Richard Gordon:
“Naval officer, aviator, chemist, test pilot, and astronaut were among the many hats of this talented and daring explorer. Dick was pilot of Gemini XI in 1966, on which he performed a spacewalk where he tethered the Gemini and Agena together for the very first attempt at creating artificial gravity by rotating spacecraft. He also was command module pilot of Apollo 12, the second manned mission to land on the Moon. While his crewmates Pete Conrad and Alan Bean landed in the Ocean of Storms, he remained in lunar orbit aboard the Yankee Clipper, taking photos for potential future landing sites and later performing final re-docking maneuvers.
“An accomplished naval aviator, Dick tested many new aircraft that later entered service and also won the Bendix Trophy Race from New York to Los Angeles in 1961, setting a new speed record for the time.
“Dick will be fondly remembered as one of our nation’s boldest flyers, a man who added to our own nation’s capabilities by challenging his own. He will be missed."
Thursday, November 2, 2017
NASA Selects Studies for Gateway Power and Propulsion Element (Press Release - November 1)
NASA has selected five U.S. companies to conduct four-month studies for a power and propulsion element that could be used as part of the deep space gateway concept. The agency is studying the gateway concept with U.S. industry and space station partners for potential future collaborations. These latest studies will help provide data on commercial capabilities as NASA defines objectives and requirements as well as help reduce risk for a new powerful and efficient solar electric propulsion (SEP) technology in deep space.
NASA needs a 50-kW SEP system, which is three-times more powerful than the capabilities available today, for future human missions. Earlier this year, NASA sought study proposals under Appendix C of the Next Space Technologies for Exploration Partnerships (NextSTEP) Broad Agency Announcement. The request identified 23 topic areas including potential commercial synergies to support development of a power and propulsion element.
Combined funding awarded for the selected studies is approximately $2.4 million. The selected companies are:
Boeing of Pasadena, Texas
Lockheed Martin of Denver, Colorado
Orbital ATK of Dulles, Virginia
Sierra Nevada Corporation’s Space Systems of Louisville, Colorado
Space Systems/Loral in Palo Alto, California
"NASA will use these studies to gain valuable insight into affordable ways to develop the power and propulsion element leveraging commercial satellite lines and plans,” said Michele Gates, director of the Power and Propulsion Element at NASA Headquarters in Washington. “Advancing a high power SEP system will help drive future exploration missions and help take humans farther into deep space than ever before."
A new power and propulsion element will leverage advanced SEP technologies developed by NASA’s Space Technology Mission Directorate. An overarching objective of these studies is to understand the driving technical differences between prior SEP-powered mission concepts and potential new requirements for NASA’s deep space gateway concept.
Wednesday, November 1, 2017
NASA / James Blair
NASA Tests Ensure Astronaut, Ground Crew Safety Before Orion Launches (News Release)
NASA is performing a series of tests to evaluate how astronauts and ground crew involved in final preparations before Orion missions will quickly get out of the spacecraft if an emergency were to occur on the pad prior to launch. In the hours before astronauts launch to space in Orion from NASA’s modernized spaceport in Florida on the agency’s Space Launch System rocket, they will cross the Crew Access Arm 300 feet above the ground and climb inside the crew module with the assistance of ground personnel trained to help them strap into their seats and take care of last-minute needs. The testing is helping engineers evaluate hardware designs and establish procedures that would be used to get astronauts and ground crew out of the capsule as quickly as possible. Flight and ground crew are required to get out of Orion within two minutes to protect for a variety of failure scenarios that do not require the launch abort system to be activated, such as crew incapacitation, fire or the presence of toxins in the cabin.
This testing took place the week of Oct. 30 using the Orion mockup in the Space Vehicle Mockup Facility at NASA’s Johnson Space Center in Houston. In this photo, engineers used fake smoke to imitate a scenario in which astronauts must exit the capsule when their vision is obscured. Markings on the ground indicate where the Crew Access Arm would be located and help guide the crew. This testing is a collaborative effort between the Orion and Ground Systems Development and Operations programs. Previous egress testing at Johnson and in the Gulf of Mexico has evaluated how crew will exit the spacecraft at the end of their missions.
Tuesday, October 17, 2017
Bigelow Aerospace and United Launch Alliance Announce Agreement to Place a B330 Habitat in Low Lunar Orbit (Press Release)
Las Vegas, NV and Centennial, Colo. – Bigelow Aerospace and United Launch Alliance (ULA) are working together to launch a B330 expandable module on ULA’s Vulcan launch vehicle. The launch would place a B330 outfitted module in Low Lunar Orbit by the end of 2022 to serve as a lunar depot.
“We are excited to work with ULA on this lunar depot project,” said Robert Bigelow, president of Bigelow Aerospace. “Our lunar depot plan is a strong complement to other plans intended to eventually put people on Mars. It will provide NASA and America with an exciting and financially practical success opportunity that can be accomplished in the short term. This lunar depot could be deployed easily by 2022 to support the nation’s re-energized plans for returning to the Moon.
"This commercial lunar depot would provide anchorage for significant lunar business development in addition to offering NASA and other governments the Moon as a new exciting location to conduct long-term exploration and astronaut training.”
The B330 would launch to Low Earth Orbit on a Vulcan 562 configuration rocket, the only commercial launch vehicle in development today with sufficient performance and a large enough payload fairing to carry the habitat. Once the B330 is in orbit, Bigelow Aerospace will outfit the habitat and demonstrate it is working properly. Once the B330 is fully operational, ULA’s industry-unique distributed lift capability would be used to send the B330 to lunar orbit. Distributed lift would also utilize two more Vulcan ACES launches, each carrying 35 tons of cryogenic propellant to low Earth orbit. In LEO, all of the cryogenic propellant would be transferred to one of the Advanced Cryogenic Evolved Stage (ACES). The now full ACES would then rendezvous with the B330 and perform multiple maneuvers to deliver the B330 to its final position in Low Lunar Orbit.
“We are so pleased to be able to continue our relationship with Bigelow Aerospace,” said Tory Bruno, ULA’s president and CEO. “The company is doing such tremendous work in the area of habitats for visiting, living and working off our planet and we are thrilled to be the ride that enables that reality.”
Bigelow Aerospace is a destination-oriented company with a focus on expandable systems for use in a variety of space applications. These NASA heritage systems provide for greater volume, safety, opportunity and economy than the aluminum alternatives.
The B330 is a standalone commercial space station that can operate in low Earth orbit, cislunar space and beyond. A single B330 is comparable to one third of the current pressurized volume of the entire International Space Station. Bigelow Aerospace is developing two B330 commercial space station habitats that will be ready for launch any time after 2020.
Source: United Launch Alliance
United Launch Alliance
Monday, October 16, 2017
Photo of the Day: Orion EM-1 Capsule Components Are Ready for Integration at NASA's Kennedy Space Center in Florida...
NASA / Ben Smegelsky
Orion Processing Continues for NASA's Exploration Mission-1 (News Release)
NASA's Orion crew module is being prepared for its first uncrewed integrated flight test atop the Space Launch System rocket. Inside the Neil Armstrong Operations and Checkout Building high bay at NASA's Kennedy Space Center in Florida, a variety of test stands, processing bays and hardware are in view. Thermal protection panels and other components for Orion are in various stages of processing.
Orion will launch on the SLS rocket from Kennedy's Launch Pad 39B on Exploration Mission-1. The spacecraft will travel thousands of miles beyond the Moon over the course of about a three-week period. Orion will return to Earth and splashdown in the Pacific Ocean.
Saturday, October 14, 2017
Just thought I'd re-post these photos that I took during the first two days of Endeavour's 3-day trek from Los Angeles International Airport to the California Science Center in downtown L.A. five years ago. The street journey for NASA's youngest retired space shuttle orbiter took place on October 12 - 14, 2012...prompting a million people to venture to Los Angeles over the course of that weekend to watch Endeavour as she ventured to her final resting spot in Exposition Park. Endeavour's permanent home, the Samuel Oschin Air and Space Center, should hopefully break ground at the Science Center sometime next year—for a grand opening in 2019. Stay tuned.
Thursday, October 12, 2017
NASA / Rad Sinyak
Work Progresses on Orion Powerhouse for Crewed Mission (News Release)
While engineers in Europe continue to outfit the Orion spacecraft’s service module for Exploration Mission-1 in preparation for shipment to NASA’s Kennedy Space Center in Florida next year, work is already beginning on the service module that will power, propel, cool and provide air and water for the first crewed mission in the Orion spacecraft in the early 2020s. Technicians at Thales Alenia in Turin, Italy, are working on the primary structure of the European Service Module that will carry astronauts in Orion beyond the Moon during Exploration Mission-2.
ESA (European Space Agency) and its contractors are providing Orion’s service module for its first two missions atop the Space Launch System rocket. NASA is leading the next steps in human space exploration and will send astronauts to the vicinity of the Moon to build and test the systems needed for challenging missions to deep space destinations including Mars. NASA is working with domestic and international partners to solve the great challenges of deep space exploration.
Wednesday, October 11, 2017
First Four Space Launch System Flight Engines Ready To Rumble (News Release)
The flight preparations for the four engines that will power NASA’s Space Launch System (SLS) on its first integrated flight with Orion are complete and the engines are assembled and ready to be joined to the deep space rocket’s core stage. All five structures that form the massive core stage for the rocket have been built including the engine section where the RS-25 engines will be attached.
“NASA’s priority is to deliver hardware for the first flight of the Space Launch System and Orion spacecraft,” said John Honeycutt, SLS program manager at NASA's Marshall Space Flight Center in Huntsville, Alabama. “This year, the SLS team has constructed major parts of the rocket, such as the in-space stage, which is already at NASA’s Kennedy Space Center in Florida, the four RS-25 engines, core stage structures, and solid rocket booster segments.”
Start Your Engines
The SLS has the largest core stage ever built and includes four RS-25 engines, which previously powered NASA’s space shuttle. The RS-25 engines that are being tested and prepared for SLS were proven during the years they were responsible for propelling 135 shuttle missions, and have been upgraded for the first SLS flight. The four that will fly on Exploration Mission-1 supported a total of 21 shuttle missions.
In total, NASA has 16 flight-proven RS-25 engines and two development engines that are being used as “workhorse” engines for testing. These engines have been used to test new controllers – the brains of the engine – which have now been installed on the flight engines. The flight engines will be attached to the core stage to prepare for green run testing – the final test for the four flight engines and the core stage that will occur before the first mission.
“NASA has transformed these phenomenal engines that served so well in the past for a new bold mission -- the first integrated launch of SLS and Orion,” said Steve Wofford, the SLS liquid engines manager at Marshall. “For engines needed beyond the first four flights, we are working with our industry partner Aerojet Rockedyne to streamline manufacturing and make future engines more affordable.”
In addition, NASA is investing in new RS-25 engines for future launches built with modern manufacturing techniques. Aerojet Rocketdyne has restarted RS-25 production and the agency has ordered six new RS-25 engines built to be expendable and more affordable to produce for future deep space exploration missions.
Core Stage: The Center of Attention
The welding completion on the liquid hydrogen tank for SLS marked the last of five parts to be built for the rocket's core stage. When it is assembled, the core stage will stand taller than a 20-story building and hold more than 700,000 gallons of propellant. The core stage is made up of the liquid hydrogen and liquid oxygen tanks; the engine section where the RS-25 engines will be housed; and the intertank and the forward skirt.
"To make these massive propellant tanks, NASA and our industry partner Boeing have used the largest robotic rocket welding tool to build the thickest pieces ever welded with self-reacting friction stir welding,” said Steve Doering, SLS stages manager at Marshall. "Now, we are moving from manufacturing major structures for the core stage to outfitting them to do their jobs and make the rocket fly.”
The liquid oxygen flight tank recently completed the first hydrostatic test for an SLS tank. The weld strength was tested by filling the tank with 200,000 gallons of water and subjecting it to pressures and forces similar to those it will experience during flight. The liquid hydrogen tank will soon undergo proof testing using gaseous nitrogen. The core stage pathfinder recently arrived at Michoud, and it will be used to help develop and verify handling and transportation procedures before these processes are used on the valuable flight hardware.
“This rocket is happening now,” said Honeycutt. “The Space Launch System team has made great progress and has an exciting year ahead as NASA conducts crucial structural tests at Marshall, assembles the core stage and the four RS-25 engines at Michoud and delivers more hardware to the launch pad at Kennedy.”
NASA / MSFC / Michoud - Jude Guidry
Tuesday, October 3, 2017
Photos of the Day: SLS Engines for Exploration Mission-2 Continue to Undergo Testing in Mississippi...
NASA / SSC
‘Two For the Show’ – NASA Installs 2nd RS-25 Flight Engine for Testing (News Release)
RS-25 flight engine E2063 is delivered and lifted into place onto the A-1 Test Stand at Stennis Space Center on Sept. 27 in preparation for an Oct. 19 hotfire test. Once tested and certified, the engine is scheduled to help power NASA’s new Space Launch System (SLS) on its Exploration Mission-2 (EM-2), which will be the first flight of the new rocket to carry humans. The hotfire test is planned during a public Founders Day Open House event at Stennis, giving thousands of visitors the chance to view a flight engine test in person.
The E2063 engine is the second SLS flight engine tested at Stennis. The E2059 engine was tested on the A-1 stand on March 10, 2016, also for use on the EM-2 flight. Stennis has been testing new flight engine controllers for use by engines on both the Exploration Mission-1 and EM-2 launches of the SLS rocket as well. It also will test the SLS core stage that will fly on the EM-1 mission. The SLS is being built to carry humans to deep-space destinations, including Mars.
NASA / SSC
Monday, October 2, 2017
NASA May Extend BEAM’s Time on the International Space Station (News Release)
NASA is exploring options with Bigelow Aerospace to extend the life of the privately owned Bigelow Expandable Activity Module. Known as BEAM, the module is attached to the International Space Station and continues to perform well during its technology demonstration mission. NASA has issued a synopsis of an intended contract action to partner with Bigelow Aerospace to extend the life of the expandable habitat and use it for long-term in-orbit storage. This step continues NASA’s commitment to expand private-public partnerships, scientific research and commercial applications aboard station to maximize the benefits from humanity’s premiere laboratory in microgravity.
NASA’s use of BEAM as part of a human-rated system will allow Bigelow Aerospace to demonstrate its technology for future commercial applications in low-Earth Orbit. Initial studies have shown that soft materials can perform as well as rigid materials for habitation volumes in space and that BEAM has performed as designed in resistance to space debris.
BEAM launched on the eighth SpaceX Commercial Resupply Service mission in 2016. After being attached to the Tranquility Node using the station’s robotic Canadarm2, it was filled with air to expand it for a two-year test period to validate overall performance and capability of expandable habitats. Since the initial expansion, a suite of sensors installed by the crew automatically take measurements and monitor BEAM’s performance to help inform designs for future habitat systems. Learning how an expandable habitat performs in the thermal environment of space and how it reacts to radiation, micrometeoroids and orbital debris will provide information to address key concerns about living in the harsh environment of space. This extension activity will deepen NASA’s understanding of expandable space systems by making the BEAM a more operational element of the space station to be actively used in storage and crew operations.
Space station crew members have entered BEAM 13 times since its expansion in May 2016. The crew has conducted radiation shielding experiments, installed passive radiation badges called Radiation Area Monitors, and they routinely collect microbial air and surface samples. These badges and samples are returned to Earth for standard microbial and radiation analysis at the Johnson Space Center.
The original plan called for engineers to robotically jettison BEAM from the space station following the two-year test and validation period, allowing it to burn up during its descent through Earth’s atmosphere. However, after almost a year and a half into the demonstration with positive performance, NASA now intends to continue supporting BEAM for stowage use and to allow Bigelow Aerospace to use the module as a test-bed for new technology demonstrations. A new contract would likely begin later this year, overlapping the original planned test period, for a minimum of three years, with two options to extend for one additional year. At the end of the new contract, the agency may consider further life extension or could again consider jettisoning BEAM from the station.
Using the space inside BEAM would allow NASA to hold between 109 to 130 Cargo Transfer Bags of in-orbit stowage, and long-term use of BEAM would enable NASA to gather additional performance data on the module’s structural integrity, thermal stability and resistance to space debris, radiation and microbial growth to help NASA advance and learn about expandable space habitat technology in low-Earth orbit for application toward future human exploration missions. Given that the volume of each Cargo Transfer Bag is about 1.87 cubic feet (0.53 cubic meters), use of BEAM for stowage will free an equivalent space of about 3.7 to 4.4 International Standard Payload Racks, enabling more space in the ISS for research.
With an extension of the partnership, Bigelow also would be able to continue to demonstrate its technology for future commercial applications in low-Earth orbit. The public-private partnership between NASA and Bigelow supports NASA’s objective to develop deep space habitation capabilities for human missions beyond Earth orbit while fostering commercial capabilities for non-government applications to stimulate the growth of the space economy.
Saturday, September 30, 2017
Yesterday, SpaceX founder Elon Musk unveiled his revised plan to begin building a new rocket and spacecraft next year that could lead to human landings on Mars by 2024. This rocket—which was initially called the Interplanetary Transport System but is better known by its colorful nickname BFR [for Big F(reakin') Rocket]—would still be designed to carry 100 people during a single launch into space...
All I can say this, Musk is a very optimistic visionary if he thinks that the chances of another Challenger or Columbia tragedy taking place drops to zero by the time the BFR becomes operational. Anyways, here are some neat illustrations of the BFR in operation...
Friday, September 29, 2017
Lockheed Martin Reveals New Details to its Mars Base Camp Vision (Press Release - September 28)
Lockheed Martin's Mars Base Camp concept shows how to send humanity to Mars in about a decade.
DENVER, Sept. 28, 2017 -- Today, at the International Astronautical Congress (IAC) in Adelaide, Australia, Lockheed Martin experts are revealing new details of its Mars Base Camp concept including how it aligns with NASA's lunar Deep Space Gateway and a Mars surface lander.
Mars Base Camp is a vision of how to send humans to Mars in about a decade. It's a sound, safe and compelling mission architecture centered around an orbital outpost where scientist-astronauts can perform unprecedented, real-time scientific exploration of the Red Planet.
"Sending humans to Mars has always been a part of science fiction, but today we have the capability to make it a reality," said Lisa Callahan, vice president and general manager of Commercial Civil Space at Lockheed Martin. "Partnered with NASA, our vision leverages hardware currently in development and production. We're proud to have Orion powered-on and completing testing in preparation for its Exploration Mission-1 flight and eventually its journey to Mars."
Mars Base Camp is aligned with NASA's recently-announced lunar Deep Space Gateway approach for developing and testing systems, including Orion, in cis-lunar space before using them to go to Mars. The Gateway allows astronauts to live and work in orbit around the Moon for months at a time while gaining experience with extended operations far from Earth.
On the Gateway, they can perform lunar science and test out systems and operations such as habitats, airlocks, solar electric propulsion, surface telerobotics and even landers. Mars Base Camp would ultimately be built up at the Deep Space Gateway, away from Earth's gravity, before being deployed to Mars.
Mars Base Camp's first mission is intended to be an orbiting mission around the Red Planet. Following this, the architecture allows for a surface lander. The concept is designed to be a reusable, single-stage lander capable of descending to the surface from Mars orbit. Each surface mission could last two weeks with up to four astronauts, and then return to the orbiting Mars Base Camp where it would be refueled and readied for another mission.
Source: Lockheed Martin
Thursday, September 28, 2017
NASA / MSFC / MAF / Steven Seipel
SLS Core Stage Pathfinder Arrives At NASA Michoud (News Release)
The Space Launch System (SLS) core stage pathfinder, which is similar in size, shape and weight to the 212-foot-tall core stage, arrived at NASA’s Michoud Assembly Facility early in the morning on September 27, 2017. To reduce the risk of first-time operations with one-of-a-kind spaceflight hardware for SLS, the agency built a core stage pathfinder.
Like SLS, the core stage pathfinder will be doing something that's never been done -- testing new shipping and handling equipment and procedures from the manufacturing site to the test site to the launch site.
Thursday, September 21, 2017
REUTERS / Patrick Fallon
Just thought I'd re-post these amazing photos that were taken as Endeavour passed over various iconic locales of California prior to arriving in Los Angeles five years ago today. From the Golden Gate Bridge in the Bay Area to the Hollywood Sign, NASA's Jet Propulsion Laboratory, the battleship USS Iowa and Angel Stadium of Anaheim in SoCal, the pilots flying NASA 905 (a modified Boeing 747) that ferried Endeavour made sure that people living in different parts of the California coastline had the opportunity to spot NASA's youngest retired space shuttle orbiter in the sky one last time. The pilots did not disappoint. Well— Except those who were down in San Diego that day... Sorry.
NASA / Carla Thomas
NASA / JPL - Twitpic.com
NASA / Jim Ross
Matthew Brucker - Twitter.com
NASA / Jim Ross
NASA / Jim Ross
NASA / Scott Andrews
Sunday, September 3, 2017
NASA / Bill Ingalls
Three International Space Station Crewmates Safely Return to Earth (Press Release)
NASA astronaut Peggy Whitson, who set multiple U.S. space records during her mission aboard the International Space Station, along with crewmates Jack Fischer of NASA and Commander Fyodor Yurchikhin of Roscosmos, safely landed on Earth at 9:21 p.m. EDT Saturday (7:21 a.m. Kazakhstan time, Sunday, Sept. 3), southeast of the remote town of Dzhezkazgan in Kazakhstan.
While living and working aboard the world’s only orbiting laboratory, Whitson and Fischer contributed to hundreds of experiments in biology, biotechnology, physical science and Earth science, welcomed several cargo spacecraft delivering tons of supplies and research experiments, and conducted a combined six spacewalks to perform maintenance and upgrades to the station.
Among their scientific exploits, Whitson and Fischer supported research into the physical changes to astronaut’s eyes caused by prolonged exposure to a microgravity environment. They also conducted a new lung tissue study that explored how stem cells work in the unique microgravity environment of the space station, which may pave the way for future stem cell research in space.
Additional research included an antibody investigation that could increase the effectiveness of chemotherapy drugs for cancer treatment, and the study of plant physiology and growth in space using an advanced plant habitat. NASA also attached the Cosmic Ray Energetics and Mass Investigation (ISS CREAM) on the outside of the space station in August, which is now observing cosmic rays coming from across the galaxy.
The crew members received a total of seven cargo deliveries during their mission. A Japanese H-II Transfer Vehicle launched to the space station in December 2016 delivering new lithium-ion batteries that were installed using a combination of robotics and spacewalks. Orbital ATK’s Cygnus spacecraft arrived at the station in April on the company's seventh commercial resupply mission. Three SpaceX Dragon spacecraft completed commercial resupply missions to the station in February, June and August. And, Russian ISS Progress cargo spacecraft docked to the station in February and June.
Whitson’s return marks the completion of a 288-day mission that began last November and spanned 122.2 million miles and 4,623 orbits of the Earth – her third long-duration mission on the station. During her latest mission, Whitson performed four spacewalks, bringing her career total to 10. With a total of 665 days in space, Whitson holds the U.S. record and places eighth on the all-time space endurance list.
Fischer, who launched in April, completed 136 days in space, during which he conducted the first and second spacewalks of his career. Yurchikhin, who launched with Fischer, now has a total of 673 days in space, putting him seventh place on the all-time endurance list.
Expedition 53 continues operating the station, with Randy Bresnik of NASA in command, and Sergey Ryazanskiy of Roscosmos and Paolo Nespoli of ESA (European Space Agency) serving as flight engineers. The three-person crew will operate the station until the arrival of NASA astronauts Mark Vande Hei and Joe Acaba, and Alexander Misurkin of Roscosmos. Vande Hei, Acaba and Misurkin are scheduled to launch Sept. 12 from Baikonur, Kazakhstan.
Friday, September 1, 2017
NASA / MSFC / Michoud / Jude Guidry
NASA Completes Welding of Liquid Oxygen Tank for First SLS Flight (News Release)
NASA is another step closer to completing all main structures for the agency’s first launch of the Space Launch System deep space rocket. The liquid oxygen flight tank was recently built in the Vertical Assembly Center robotic welder at NASA's Michoud Assembly Facility in New Orleans.
After the liquid oxygen tank was inspected, it was moved to another area for plug welding to fill the holes left by the friction stir welding process. Five major parts -- the engine section, liquid hydrogen tank, intertank, liquid oxygen tank and forward skirt –will be connected together to form the 212-foot-tall core stage, the backbone of the SLS rocket.
Boeing, the prime contractor for the core stage, is welding the liquid hydrogen tank structure--the final major core stage structure to be built for the first integrated flight of SLS and Orion. The liquid hydrogen and liquid oxygen tanks will hold 733,000 gallons of propellant to power the stage's four RS-25 engines that together produce more than 2 million pounds of thrust.
Thursday, August 31, 2017
Photos of the Day #2: The Full-Size SLS Core Stage Mock-up Is Ready to Help NASA Prepare to Handle the Real Thing...
NASA / MSFC
SLS Core Stage Simulator Will Pave Way for Mission Success (News Release)
To reduce the risk of first-time operations with one-of-a-kind spaceflight hardware for NASA’s Space Launch System (SLS), the agency built a core stage pathfinder similar in size, shape and weight to the 212-foot-tall core stage. Like SLS, the core stage pathfinder will be doing something that's never been done -- testing new shipping and handling equipment and procedures from the manufacturing site to the test site to the launch site.
Three companies helped build the pathfinder, joining more than 1,000 other American businesses that have contributed to building NASA’s deep-space rocket. Alabama companies Radiance Technologies and Dynetics of Huntsville and G&G Steel of Russellville worked to build and assemble the core stage pathfinder.
The steel simulator will travel by commercial barge from G&G Steel's Cordova factory to NASA's rocket factory, the Michoud Assembly Facility in New Orleans. Later, it will make its way on NASA’s barge Pegasus to the agency’s Stennis Space Center near Bay St. Louis in Mississippi, and then to Kennedy Space Center in Florida. In all these NASA facilities, the core stage pathfinder will help technicians practice critical operations for handling and transporting flight hardware and enable them to fit check the hardware before the actual core stage arrives at their facilities.
NASA / MSFC