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By NASA
A test image of Earth taken by NASA’s Pathfinder Technology Demonstrator-4’s onboard camera. The camera will capture images of the Lightweight Integrated Solar Array and anTenna upon deployment.NASA NASA recently evaluated initial flight data and imagery from Pathfinder Technology Demonstrator-4 (PTD-4), confirming proper checkout of the spacecraft’s systems including its on-board electronics as well as the payload’s support systems such as the small onboard camera. Shown above is a test image of Earth taken by the payload camera, shortly after PTD-4 reached orbit. This camera will continue photographing the technology demonstration during the mission.
Payload operations are now underway for the primary objective of the PTD-4 mission – the demonstration of a new power and communications technology for future spacecraft. The payload, a deployable solar array with an integrated antenna called the Lightweight Integrated Solar Array and anTenna, or LISA-T, has initiated deployment of its central boom structure. The boom supports four solar power and communication arrays, also called petals. Releasing the central boom pushes the still-stowed petals nearly three feet (one meter) away from the spacecraft bus. The mission team currently is working through an initial challenge to get LISA-T’s central boom to fully extend before unfolding the petals and beginning its power generation and communication operations.
Small spacecraft on deep space missions require more electrical power than what is currently offered by existing technology. The four-petal solar array of LISA-T is a thin-film solar array that offers lower mass, lower stowed volume, and three times more power per mass and volume allocation than current solar arrays. The in-orbit technology demonstration includes deployment, operation, and environmental survivability of the thin-film solar array.
“The LISA-T experiment is an opportunity for NASA and the small spacecraft community to advance the packaging, deployment, and operation of thin-film, fully flexible solar and antenna arrays in space. The thin-film arrays will vastly improve power generation and communication capabilities throughout many different mission applications,” said Dr. John Carr, deputy center chief technologist at NASA’s Marshall Space Flight Center in Huntsville, Alabama. “These capabilities are critical for achieving higher value science alongside the exploration of deep space with small spacecraft.”
The Pathfinder Technology Demonstration series of missions leverages a commercial platform which serves to test innovative technologies to increase the capability of small spacecraft. Deploying LISA-T’s thin solar array in the harsh environment of space presents inherent challenges such as deploying large highly flexible non-metallic structures with high area to mass ratios. Performing experiments such as LISA-T on a smaller, lower-cost spacecraft allows NASA the opportunity to take manageable risk with high probability of great return. The LISA-T experiment aims to enable future deep space missions with the ability to acquire and communicate data through improved power generation and communication capabilities on the same integrated array.
The PTD-4 small spacecraft is hosting the in-orbit technology demonstration called LISA-T. The PTD-4 spacecraft deployed into low Earth orbit from SpaceX’s Transporter-11 rocket which launched from Space Launch Complex 4E at Vandenberg Space Force Base in California on Aug. 16. NASA’s Marshall Space Flight Center in Huntsville, Alabama designed and built the LISA-T technology as well as LISA-T’s supporting avionics system. NASA’s Small Spacecraft Technology program, based at NASA’s Ames Research Center in California’s Silicon Valley and led by the agency’s Space Technology Mission Directorate, funds and manages the PTD-4 mission as well as the overall Pathfinder Technology Demonstration mission series. Terran Orbital Corporation of Irvine, California, developed and built the PTD-4 spacecraft bus, named Triumph.
Learn more about NASA’s LISA-T technology:
NASA teams are testing a key technology demonstration known as LISA-T, short for the Lightweight Integrated Solar Array and anTenna. It’s a super compact, stowable, thin-film solar array that when fully deployed in space, offers both a power generation and communication capability for small spacecraft. LISA-T’s orbital flight test is part of the Pathfinder Technology Demonstrator series of missions. To travel farther into deep space, small spacecraft require more electrical power than what is currently available through existing technology. LISA-T aims to answer that demand and would offer small spacecraft access to power without compromising mass or volume. Watch this video to learn more about the spacecraft, its deployment, and the possibilities from John Carr, deputy center chief technologist at NASA’s Marshall Space Flight Center in Huntsville, Alabama. View the full article
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By NASA
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
This September 2024 aerial photograph shows the coastal launch range at NASA’s Wallops Flight Facility on Virginia’s Eastern Shore. Wallops is the agency’s only owned-and-operated launch range.Courtesy Patrick J. Hendrickson; used with permission NASA’s Wallops Flight Facility in Virginia is scheduled to support the launch of a suborbital sounding rocket for the U.S. Department of Defense during a launch window that runs 5 p.m. to 11 p.m. EDT each day from Wednesday, Oct. 23 to Friday, Oct. 25.
No real-time launch status updates will be available. The launch will not be livestreamed nor will launch status updates be provided during the countdown. The Wallops Visitor Center will be closed to the public.
The rocket launch is expected to be visible from the Chesapeake Bay region.
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By European Space Agency
ESA Impact Council Edition: Your update on space achievements
An interactive publication covering captivating stories and stunning images since the last Council meeting.
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By NASA
2 min read
NASA Reveals Prototype Telescope for Gravitational Wave Observatory
NASA has revealed the first look at a full-scale prototype for six telescopes that will enable, in the next decade, the space-based detection of gravitational waves — ripples in space-time caused by merging black holes and other cosmic sources.
On May 20, the full-scale Engineering Development Unit Telescope for the LISA (Laser Interferometer Space Antenna) mission, still in its shipping frame, was moved within a clean room at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. NASA/Dennis Henry The LISA (Laser Interferometer Space Antenna) mission is led by ESA (European Space Agency) in partnership with NASA to detect gravitational waves by using lasers to measure precise distances — down to picometers, or trillionths of a meter — between a trio of spacecraft distributed in a vast configuration larger than the Sun. Each side of the triangular array will measure nearly 1.6 million miles, or 2.5 million kilometers.
“Twin telescopes aboard each spacecraft will both transmit and receive infrared laser beams to track their companions, and NASA is supplying all six of them to the LISA mission,” said Ryan DeRosa, a researcher at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “The prototype, called the Engineering Development Unit Telescope, will guide us as we work toward building the flight hardware.”
The prototype LISA telescope undergoes post-delivery inspection in a darkened NASA Goddard clean room on May 20. The entire telescope is made from an amber-colored glass-ceramic that resists changes in shape over a wide temperature range, and the mirror’s surface is coated in gold. NASA/Dennis Henry The Engineering Development Unit Telescope, which was manufactured and assembled by L3Harris Technologies in Rochester, New York, arrived at Goddard in May. The primary mirror is coated in gold to better reflect the infrared lasers and to reduce heat loss from a surface exposed to cold space since the telescope will operate best when close to room temperature.
The prototype is made entirely from an amber-colored glass-ceramic called Zerodur, manufactured by Schott in Mainz, Germany. The material is widely used for telescope mirrors and other applications requiring high precision because its shape changes very little over a wide range of temperatures.
The LISA mission is slated to launch in the mid-2030s.
Download additional images from NASA’s Scientific Visualization Studio
By Francis Reddy
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Media Contact:
Claire Andreoli
301-286-1940
claire.andreoli@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
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Last Updated Oct 22, 2024 Related Terms
Astrophysics Black Holes Galaxies, Stars, & Black Holes Goddard Space Flight Center Gravitational Waves LISA (Laser Interferometer Space Antenna) The Universe Keep Exploring Discover Related Topics
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By NASA
At any given time, crew members are conducting dozens of scientific investigations and technology demonstrations on the International Space Station. If you’re curious about this work, the Space Station Research Xplorer (SSRX) mobile application provides information on these experiments, special facilities on the station, research benefits, and published results. The app includes summaries of each investigation along with photos, videos, interactive media, and additional reference links.
Screenshot from the Space Station Research Xplorer (SSRX) mobile app
Other sections include:
Facilities – brief descriptions of research facilities browsable by research category, with images and information on sponsoring agency and organization, research manager, results publications, and media links when available. Benefits – information on how the research benefits space exploration and people on Earth, with sections offering more in-depth understanding of the types of benefits, access to the latest ISS Benefits for Humanity publication, and relevant videos and audio podcasts. Results – listings of peer-reviewed scientific publications in which papers related to station research appeared in a given fiscal year and summaries of recent and especially compelling findings that advance science, technology, and education, as well as promote the commercialization of space and benefit humankind. This section also provides access to the latest Annual Highlights of Results publication. LabTour – exploration of the interior of the station’s Columbus, Kibo, and Destiny modules, including tapping on any of the research racks to learn more information and an experiment description when available. Media – a variety of imagery, videos, fact sheets, and social media posts on space station research. Links – related space station research and technology demonstration opportunities, mobile apps, web landing pages, podcasts, social media, images, videos, educational resources, and more. The SSRX app is updated each month and available for iPhone, iPad, and Android platforms. The app is even available to the astronauts currently in space.
Download the Space Station Research Xplorer (SSRX) mobile app from:
Apple Google Play
NASA also offers apps that provide interactive experiences with two major areas of space station research: plant growth and human health.
Screenshot from the NASA Science Investigations: Plant Growth app On the NASA Science Investigations: Plant Growth app, your task as the newest member of the crew is to familiarize yourself with the interior of the station, which is the size of a five-bedroom house and contains a wide variety of equipment and tools. Once you are ready, help with a plant growth experiment, conducting tasks such as watering, trimming, and analyzing plant growth. Future missions need the ability to grow plants in space to provide fresh food for crew members and to contribute to life support systems, and the space station has hosted multiple experiments working toward this goal. Researchers have grown lettuces, Chinese cabbage, mustard greens, kale, tomatoes, radishes, and chile peppers on orbit. Now it’s your turn!
Download the NASA Science Investigations: Plant Growth mobile app from:
App Store Google Play
Screenshot from the NASA Science Investigations: Humans in Space app Your job on the NASA Science Investigations: Humans in Space app is to follow instructions provided and make sure the H-II Transfer Vehicle is successfully berthed to the station. This uncrewed spacecraft from JAXA (Japan Aerospace Exploration Agency) is one of several that make regular visits from Earth, bringing supplies, scientific experiments, and treats for the crew such as fresh fruit. You perform this task while experiencing the effects of microgravity, including adjusting to being nearly weightless, the lack of references such as up or down, and tools that float away.
Download the NASA Science Investigations: Humans in Space mobile app from:
App Store Google Play
Keep Exploring Discover More Topics
Opportunities and Information for Researchers
Latest News from Space Station Research
Station Benefits for Humanity
Biological & Physical Science Stories
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