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By NASA
NASA On Sept. 16, 1994, astronaut Mark C. Lee tested out the Simplified Aid for EVA Rescue (SAFER) system, a system designed for use in the event a crew member becomes untethered while conducting a spacewalk. Occurring during the STS-64 mission, this was the first untethered U.S. spacewalk in 10 years.
This SAFER test was the first phase of a larger SAFER program whose objectives were to establish a common set of requirements for both space shuttle and space station program needs, develop a flight demonstration of SAFER, validate system performance and, finally, develop a production version of SAFER for the shuttle and station programs.
Image Credit: NASA
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By NASA
As part of an asteroid sample exchange, NASA has transferred to JAXA (Japan Aerospace Exploration Agency) a portion of the asteroid Bennu sample collected by the agency’s OSIRIS-REx mission. The sample was officially handed over by NASA officials during a ceremony on Aug. 22 at JAXA’s Sagamihara, Japan, campus.
The signature exchange for the Bennu sample transfer took place on Aug. 22, 2024, at JAXA’s (Japan Aerospace Exploration Agency) Institute of Space and Astronautical Science, Sagamihara Campus.JAXA This asteroid sample transfer follows the November 2021 exchange where JAXA transferred to NASA a portion of the sample retrieved from asteroid Ryugu by its Hayabusa2 spacecraft. This agreement allows NASA and JAXA to share achievements and promote scientific and technological cooperation on asteroid sample return missions. The scientific goals of the two missions are to understand the origins and histories of primitive, organic-rich asteroids and what role they may have played in the formation of the planets.
“We value our continued collaboration with JAXA on asteroid sample return missions to both increase our science return and reduce risk on these and other missions,” said Kathleen Vander Kaaden, chief scientist for astromaterials curation in the Science Mission Directorate at NASA Headquarters in Washington. “JAXA has extensive curation capabilities, and we look forward to what we will learn from the shared analysis of the OSIRIS-REx samples.”
The Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer, or OSIRIS-REx, spacecraft delivered 4.29 ounces (121.6 grams) of material from Bennu, more than double the mission’s mass requirement, as well as 24 steel Velcro® pads containing dust from the contact with Bennu. As part of the agreement, the Astromaterials Research and Exploration Science Division at NASA’s Johnson Space Center in Houston transferred to JAXA 0.023 ounces (0.66 grams) of the Bennu sample, equaling 0.55% of the total sample mass, and one of the 24 contact pads.
Hayabusa2 collected 0.19 ounces (5.4 grams) of Ryugu between two samples and, in 2021, JAXA provided NASA with 23 millimeter-sized grains plus aggregate sample material from Ryugu, enabling both countries to get the most out of the samples and share the responsibility of sample curation.
JAXA’s portion of the Bennu samples will be housed in the newly expanded clean rooms in the extraterrestrial sample curation center on the JAXA Sagamihara campus. The JAXA team received the samples enclosed in non-reactive nitrogen gas and will open them in similarly nitrogen-filled clean chambers, accessed with air-tight gloves. JAXA will now work to create an initial description of the sample, including weight measurements, imaging with both visible light and infrared light microscopes, and infrared spectroscopy. The sample will then be distributed through a competitively selected process for detailed analysis at other research institutes to study the differences and similarities between asteroids Bennu and Ryugu.
JAXA “Thank you for safely bringing the precious asteroid samples from Bennu to Earth and then to Japan,” said Tomohiro Usui, Astromaterials Science Research Group Manager, Institute of Space and Astronautical Science, JAXA. “As fellow curators, we understand the tension and responsibility that accompany these tasks. Now, it is our turn at JAXA. We will go ahead with our plans to derive significant scientific outcomes from these valuable samples.”
Asteroids are debris left over from the dawn of the solar system. The Sun and its planets formed from a cloud of dust and gas about 4.6 billion years ago, and asteroids are thought to date back to the first few million years of our solar system’s history. Sample return missions like OSIRIS-REx and Hayabusa2 help provide new data on how the solar system’s evolution unfolded.
Initial analysis of the Bennu samples has revealed dust rich in carbon and nitrogen. Members of the OSIRIS-REx sample analysis team have also found evidence of organic molecules and minerals bearing phosphorous and water, which together could indicate the building blocks essential for life.
Both the Bennu sample and the asteroid Ryugu sample delivered by JAXA’s Hayabusa2 mission appear to have come from an ancient parent object formed beyond the current orbit of Saturn that was broken up and transported into the inner solar system. The differences between these asteroids are emerging as the detailed chemistry is analyzed.
NASA’s Goddard Space Flight Center in Greenbelt, Maryland, provided overall mission management, systems engineering, and the safety and mission assurance for OSIRIS-REx. Dante Lauretta of the University of Arizona, Tucson, is the principal investigator. The university leads the science team and the mission’s science observation planning and data processing. Lockheed Martin Space in Littleton, Colorado, built the spacecraft and provided flight operations. Goddard and KinetX Aerospace were responsible for navigating the OSIRIS-REx spacecraft. Curation for OSIRIS-REx takes place at NASA Johnson. International partnerships on this mission include the OSIRIS-REx Laser Altimeter instrument from CSA (Canadian Space Agency) and asteroid sample science collaboration with JAXA’s Hayabusa2 mission. OSIRIS-REx is the third mission in NASA’s New Frontiers Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington.
Find more information about NASA’s OSIRIS-REx mission at:
https://science.nasa.gov/mission/osiris-rex
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News Media Contacts
Wynn Scott
NASA’s Johnson Space Center, Houston
281-910-6835
wynn.b.scott@nasa.gov
Karen Fox / Alana Johnson
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / alana.r.johnson@nasa.gov
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Meet four employees from NASA’s Glenn Research Center who have a personal connection to aviation, at work and beyond.Credit: (Left to right): Waldo Acosta, Jared Berg, Lori Manthey, Lindsay Kaldon The first “A” in NASA stands for aeronautics. Glenn Research Center in Cleveland is just one of several NASA centers conducting revolutionary research to make flight cleaner, safer, and quieter.
But an interest in flying goes beyond the professional for many at NASA. Meet a handful of NASA Glenn employees who have a personal connection to aviation, at work and beyond.
Jared Berg
“I think my flying and engineering work positively influence each other. Flying integrates a lot of technical disciplines and serves as a real-word application of things I know theoretically about aerodynamics or heat transfer.”
jared berg
Thermal Subsystem Manager for Gateway’s Power and Propulsion Element
Left photo: Jared Berg flying above the clouds in the the NASAIRS Flying Club’s Cessna 172. Right photo: A view out the plane window.Credit: Jared Berg Planting the Seed: Berg grew up reading aviation books with his family and building model planes. Attending the EAA AirVenture airshow in Oshkosh, Wisconsin, throughout childhood inspired him to pursue flight training once he had a full-time NASA job.
Joining the Club: Berg is currently a member of the NASAIRS Flying Club at NASA Glenn, which he says helps make flying more accessible and lets him constantly learn from other pilots.
Flying High: Berg has now been flying recreationally for over a decade and considers it a part of his everyday life. “Flying allows an escape from the mundane and brings a sense of adventure to traveling,” Berg said. “You also get to experience nature, specifically weather but also the land you’re flying over, in a way that’s relatively raw and somehow personal.”
Lindsay Kaldon
"I love the feeling after takeoff and when you’ve reached cruising altitude. It’s as if all the stresses of life wash away when you’re up there in the sky. Being up in the clouds with all the beauty of the Earth below, it’s as if you’re in heaven.”
Lindsay Kaldon
Fission Surface Power Project Manager
Left photo: Lindsay Kaldon after her first solo flight. Right photo: Kaldon celebrates passing her private pilot exam.Credit: Lindsay Kaldon Air Force and Astronauts: Kaldon’s father was an Air Force F-16 crew chief and a member of the Thunderbirds demonstration team, so Kaldon was no stranger to jets growing up. “Every day was an airshow living on the base that they trained out of,” Kaldon said. After earning a bachelor’s degree in electrical engineering, Kaldon joined the Air Force herself with hopes of one day becoming an astronaut.
Going Solo: Kaldon later earned her private pilot’s license and says she’ll always remember her first solo cross-country flight. She chose Kitty Hawk, the site of the Wright brothers’ first flight, as her destination.
Keeping the Energy: A monument that stands along the runway at Kitty Hawk is inscribed with words Kaldon remembers whenever solving difficult challenges through her work at NASA. “It says, ‘Achieved by Dauntless Resolution and Unconquerable Faith.’ The Wright brothers were faced with a lot of doubters who didn’t think flight was possible. Yet they proved them wrong and never gave up,” Kaldon said. “I love that. When things get tough, I just close my eyes and think about that phrase.”
Lori Manthey
“I encourage anyone who has an interest in flying to take a discovery flight at your local airport. If you get bitten by the flying bug, it just may become a life-long obsession. Ask me how I know!”
Lori Manthey
Chief of Administrative Services and Exchange Operations Manager
Left photo: Lori Manthey with a Grumman Cheetah plane. Right photo: Lori Manthey at the Grumman Cheetah controls.Credit: Lori Manthey Head in the Clouds: After a discovery flight in a small Cessna 150 plane, Manthey was hooked on flying. On weekends and evenings after beginning a full-time NASA job, she hopped in a Piper Tomahawk single-engine trainer at Lorain County Regional Airport to earn her private pilot certificate. “I love the feeling of floating in the air and seeing the world below,” she said.
Women in Aero: Manthey is passionate about advancing and supporting female pilots and currently serves as membership chair of the Lake Erie chapter of the Ninety-Nines, an organization started by Amelia Earhart in 1929. She is also a member of the Cleveland chapter of Women in Aviation.
Looking to the Future: Every year, Manthey participates in Girls in Aviation Day at Cleveland’s Burke Lakefront Airport to introduce girls to the world of aviation. “I think it is so important to help encourage young women and girls to become part of the next generation of female pilots,” she said.
Back in the Cockpit: Manthey is currently working to earn her instrument rating, which will let her fly “blind” in cloudy and foggy weather conditions.
Waldo J. Acosta
“Flying gives me a thrill. The perspective you’re able to see of the world from up in the sky is a special feeling. Aircraft have the ability to take us all over the world so we can experience different cultures and meet different people, and that has shaped me into who I am today.”
Waldo J. Acosta
Icing Research Tunnel Lead Facility Engineer
Left photo: Waldo J. Acosta, right, stands beside his father before taking him for a ride in a DA20 aircraft. Top right photo: A young Acosta and his father at the EAA AirVenture airshow in Oshkosh, Wisconsin. Lower right photo: Acosta (center) works with colleagues Tadas Bartkus (left) and Emily Timko in the control room of NASA Glenn Research Center’s Icing Research Tunnel. Credit: Waldo J. Acosta, NASA/Jef Janis Family Ties: Throughout Acosta’s childhood, Acosta’s father, a former researcher at NASA Glenn, brought his family along on work trips to the EAA AirVenture airshow in Oshkosh, Wisconsin. “I fell in love with everything related to flying during those trips, and they set the tone early on my path to working in aviation,” Acosta said.
Next Steps: Acosta started taking flying lessons while studying aerospace engineering at The Ohio State University, eventually receiving his private pilot’s license.
Safety First: Overseeing testing and maintenance operations at NASA Glenn’s Icing Research Tunnel, Acosta is now directly involved in aviation safety research. The facility, the longest-running icing wind tunnel in the world, helps NASA and industry study how ice affects aircraft and test ice protection systems and tools.
Flying Full Circle: Acosta still attends airshows every chance he can get and has taken both his father and wife soaring into the clouds.
Keep Exploring Discover More Topics From NASA
Missions
Humans in Space
Climate Change
Solar System
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By NASA
NASA/CXC/M.Weiss By using new data from NASA’s Chandra X-ray Observatory and Neil Gehrels Swift Observatory as well as ESA’s XMM-Newton, a team of researchers have made important headway in understanding how — and when — a supermassive black hole obtains and then consumes material, as described in our latest press release.
This artist’s impression shows a star that has partially been disrupted by such a black hole in the system known as AT2018fyk. The supermassive black hole in AT2018fyk — with about 50 million times more mass than the sun — is in the center of a galaxy located about 860 million light-years from Earth.
Astronomers have determined that a star is on a highly elliptical orbit around the black hole in AT2018fyk so that its point of farthest approach from the black hole is much larger than its closest. During its closest approach, tidal forces from the black hole pull some material from the star, producing two tidal tails of “stellar debris”.
The illustration shows a point in the orbit soon after the star is partially destroyed, when the tidal tails are still in close proximity to the star. Later in the star’s orbit, the disrupted material returns to the black hole and loses energy, leading to a large increase in X-ray brightness occurring later in the orbit (not shown here). This process repeats each time the star returns to its point of closest approach, which is approximately every 3.5 years. The illustration depicts the star during its second orbit, and the disk of X-ray emitting gas around the black hole that is produced as a byproduct of the first tidal encounter.
Researchers took note of AT2018fyk in 2018 when the optical ground-based survey ASAS-SN detected that the system had become much brighter. After observing it with NASA’s NICER and Chandra, and XMM-Newton, researchers determined that the surge in brightness came from a “tidal disruption event,” or TDE, which signals that a star was completely torn apart and partially ingested after flying too close to a black hole. Chandra data of AT2018fyk is shown in the inset of an optical image of a wider field-of-view.
X-ray: NASA/SAO/Kavli Inst. at MIT/D.R. Pasham; Optical: NSF/Legacy Survey/SDSS When material from the destroyed star approached close to the black hole, it got hotter and produced X-ray and ultraviolet (UV) light. These signals then faded, agreeing with the idea that nothing was left of the star for the black hole to digest.
However, about two years later, the X-ray and UV light from the galaxy got much brighter again. This meant, according to astronomers, that the star likely survived the initial gravitational grab by the black hole and then entered a highly elliptical orbit with the black hole. During its second close approach to the black hole, more material was pulled off and produced more X-ray and UV light.
Based on what they had learned about the star and its orbit, a team of astronomers predicted that the black hole’s second meal would end in August 2023 and applied for Chandra observing time to check. Chandra observations on August 14, 2023, indeed showed the telltale sign of the black hole feeding coming to an end with a sudden drop in X-rays. The researchers also obtained a better estimate of how long it takes the star to complete an orbit, and predicted future mealtimes for the black hole.
A paper describing these results appears in the August 14, 2024 issue of The Astrophysical Journal and is available online. The authors are Dheeraj Passam (Massachusetts Institute of Technology), Eric Coughlin (Syracuse University), Muryel Guolo (Johns Hopkins University), Thomas Wevers (Space Telescope Science Institute), Chris Nixon (University of Leeds, UK), Jason Hinkle (University of Hawaii at Manoa), and Ananaya Bandopadhyay (Syracuse).
NASA’s Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science from Cambridge Massachusetts and flight operations from Burlington, Massachusetts.
Read more from NASA’s Chandra X-ray Observatory.
For more Chandra images, multimedia and related materials, visit:
https://www.nasa.gov/mission/chandra-x-ray-observatory/
Visual Description:
In this digital illustration, a star sheds stellar debris as it orbits a supermassive black hole. This artist’s impression represents the center of a galaxy about 860 million light-years from Earth.
The supermassive black hole sits at our upper left. It resembles an irregular, pitch-black sphere at the heart of an almond-shaped pocket of swirling sand and dirt. Though gritty in texture, the swirling brown and grey pocket is actually a disk of hot gas.
Near our lower right is the orbiting star. In this illustration, the star is relatively close to us, with the black hole far behind it. The star is a blue-white ball that, from this perspective, appears slightly larger than the distant black hole.
Two tapered streaks peel off of the glowing star like the pulled-back corners of a smile. These streaks represent tidal tails of stellar debris; material pulled from the surface of the star by the gravity of the black hole. This partial destruction of the star occurs every 3.5 years, when the star’s orbit brings it closest to the supermassive black hole.
During the orbit, the stellar debris from the tidal tails is ingested by the black hole. A byproduct of this digestion is the X-ray gas which swirls in a disk around the black hole.
At the upper left of the grid is an image of the distant galaxy cluster known as MACS J0416. Here, the blackness of space is packed with glowing dots and tiny shapes, in whites, purples, oranges, golds, and reds, each a distinct galaxy. Upon close inspection (and with a great deal of zooming in!) the spiraling arms of some of the seemingly tiny galaxies are revealed in this highly detailed image. Gently arched across the middle of the frame is a soft band of purple; a reservoir of superheated gas detected by Chandra.
News Media Contact
Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
Lane Figueroa
Marshall Space Flight Center
Huntsville, Ala.
256-544-0034
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