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By European Space Agency
Image: This Copernicus Sentinel-2 image captures the intricate blend of natural, rural and urban landscapes around Kunshan, a city in eastern China. View the full article
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By Space Force
The U.S. Space Force celebrates its fifth year of existence securing the nation’s interest in, from and to space.
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By NASA
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Two NASA employees, Howard Chang and Bradley Williams, were named as two of the “20 under 35 of 2024” by the Space and Satellite Professionals International. The award recognizes outstanding young professionals in the space industry.
Photos courtesy of Bradley Williams and Howard Chang The annual list of “20 Under 35” features 20 employees and entrepreneurs to keep your eye on in coming years. They were selected from nominations submitted by the membership and evaluated by the same panel of judges who name winners of the Promise Awards.
Howard Chang is an Assistant Chief Counsel at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Bradley (Brad) Williams is the Acting Associate Director for Flight, Heliophysics Division, NASA Science Mission Directorate at NASA Headquarters, Washington.
“I’m honored to be named in this year’s cohort,” Chang said. “I saw how SSPI connects people across the space and satellite industry—across generations, countries, and even disciplines—to build up the space economy of the future. And I can’t express enough thanks to all my NASA colleagues for their support and kindness—especially Deputy Chief Counsel Amber Hufft for her time and mentorship this year.”
“It is an absolute honor to be recognized by SSPI on the 20 under 35 list of 2024,” said Williams. “I feel privileged to have benefitted from the opportunities I’ve had so far in my career. I want to thank the numerous mentors through the years who have provided me guidance and lessons learned and especially my colleagues and the leaders at NASA who have recognized my contributions and supported my growth potential as a leader.”
About Howard Chang
Howard Chang serves as the lead attorney for NASA’s Wallops Flight Facility’s commercial, nonprofit, and interagency partnerships in Wallops Island, Virginia. He also focuses on legal issues involving Unmanned Aircraft Systems (UAS), small UAS, real property transactions, government contracts litigation and administration supporting NASA Goddard, and partnerships involving the Goddard Institute for Space Studies located at Columbia University, New York, NASA commended Chang with an individual merit award in recognition of his superior support to the Goddard Space Flight Center during his first six months.
In addition to his legal work, Chang contributes substantially to thought leadership in space law and policy. He has authored articles for The Federalist and the International Institute of Space Law on topics from the Apollo 8 mission to the travaux preparatoires of the Principles Declaration of 1963—the precursor to the Outer Space Treaty. He is a frequent speaker on matters of space law. He will be presenting at the 2024 International Astronautical Congress in Milan, Italy on the Wolf Amendment and the future of the International Space Station. In Milan, he will present in his capacity as an Advisor for the Georgetown University Space Initiative. He continues to serve as a guest lecturer on space policy for law schools and undergraduate space courses as well.
Chang previously worked at an international firm in its aerospace finance and space law practices, engaging in litigation, transactional, regulatory, and policy work for aerospace and space companies. In addition, he worked on white-collar criminal defense, internal corporate investigations, congressional investigations, trial litigation, appellate litigation, and national security matters.
About Bradley Williams
Bradley Williams is the acting Associate Director for Flight Programs in the Heliophysics Division of the Science Mission Directorate at NASA Headquarters, Washington where he oversees more than a dozen missions in operations and approximately another dozen missions in different stages of development.
Previously, Williams was a Program Executive in the Heliophysics Division where his assignments included IMAP, TRACERS, HelioSwarm, the Solar Cruiser solar sail technology project, and Senior Program Executive of the NASA Space Weather Program.
Before joining NASA, he was the Director of Civil Space Programs at Terran Orbital Corporation, where he led the spacecraft development for both commercial and NASA technology demonstration missions and assisted with the growth of the science mission portfolio.
Previously at the University of Arizona, he worked with faculty and research teams to identify proposal opportunities and develop spaceflight proposals. Williams was a vital member of the OSIRIS-REx Camera Suite (OCAMS) team. He also served as the Deputy Payload Manager on GUSTO, the first of its kind, balloon-borne observatory.
He has been recognized for his achievements being named a Via Satellite Rising Star in 2024 and has been awarded the Robert H. Goddard Engineering Team Award, NASA Group Achievement Award, and asteroid (129969) Bradwilliams named in his honor.
The “20 Under 35“ are honored each year at SSPI’s Future Leaders Dinner. At the Dinner, SSPI presents the three top-ranked members of the 20 Under 35 with a Promise Award, recognizing them as leaders of their year’s cohort, and honors the Mentor of the Year for fostering young talent, both within his or her organization and throughout the industry. The 2024 “20 Under 35” will be honored at the Future Leaders Celebration on October 21, 2024 during Silicon Valley Space Week.
Rob Gutro
NASA’s Goddard Space Flight Center
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Last Updated Oct 03, 2024 EditorJamie AdkinsContactRob Garnerrob.garner@nasa.gov Related Terms
General Goddard Space Flight Center People of Goddard People of NASA
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By NASA
The SpaceX Dragon spacecraft approaching the International Space StationCredits: NASA Media accreditation is open for the next launch to deliver NASA science investigations, supplies, and equipment to the International Space Station. This launch is the 31st SpaceX commercial resupply services mission to the orbital laboratory for the agency and will lift off on the company’s Falcon 9 rocket.
NASA and SpaceX are targeting no earlier than Wednesday, Oct. 30, to launch the SpaceX Dragon spacecraft from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
Credentialing to cover prelaunch and launch activities is open to U.S. media. The application deadline for U.S. citizens is 11:59 p.m. EDT, Tuesday, Oct. 15. All accreditation requests must be submitted online at:
https://media.ksc.nasa.gov
Credentialed media will receive a confirmation email upon approval. NASA’s media accreditation policy is available online. For questions about accreditation, or to request special logistical support, email: ksc-media-accreditat@mail.nasa.gov. For other questions, please contact NASA’s Kennedy Space Center newsroom at: 321-867-2468.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitor entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
Each resupply mission to the station delivers scientific investigations in the areas of biology and biotechnology, Earth and space science, physical sciences, and technology development and demonstrations. Cargo resupply from U.S. companies ensures a national capability to deliver scientific research to the space station, significantly increasing NASA’s ability to conduct new investigations aboard humanity’s laboratory in space.
In addition to food, supplies, and equipment for the crew, Dragon will deliver several new experiments, including the Coronal Diagnostic Experiment, to examine solar wind and how it forms. Dragon also delivers Antarctic moss to observe the combined effects of cosmic radiation and microgravity on plants. Other investigations aboard include a device to test cold welding of metals in microgravity, and an investigation that studies how space impacts different materials.
Crews have occupied the space station continuously since November 2000. In that time, 280 people from 23 countries have visited the orbital outpost. The space station is a springboard to NASA’s next great leap in exploration, including future missions to the Moon under Artemis, and ultimately, human exploration of Mars.
Learn more about NASA’s commercial resupply missions at:
https://www.nasa.gov/station
-end-
Claire O’Shea / Josh Finch
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov / joshua.a.finch@nasa.gov
Stephanie Plucinsky / Steven Siceloff / Danielle Sempsrott
Kennedy Space Center, Fla.
321-876-2468
stephanie.n.plucinsky@nasa.gov / steven.p.siceloff@nasa.gov / danielle.c.sempsrott@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated Oct 03, 2024 LocationNASA Headquarters Related Terms
International Space Station (ISS) Commercial Resupply ISS Research Johnson Space Center Kennedy Space Center SpaceX Commercial Resupply View the full article
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By NASA
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s Psyche spacecraft is depicted receiving a laser signal from the Deep Space Optical Communications uplink ground station at JPL’s Table Mountain Facility in this artist’s concept. The DSOC experiment consists of an uplink and downlink station, plus a flight laser transceiver flying with Psyche.NASA/JPL-Caltech The Deep Space Optical Communications tech demo has completed several key milestones, culminating in sending a signal to Mars’ farthest distance from Earth.
NASA’s Deep Space Optical Communications technology demonstration broke yet another record for laser communications this summer by sending a laser signal from Earth to NASA’s Psyche spacecraft about 290 million miles (460 million kilometers) away. That’s the same distance between our planet and Mars when the two planets are farthest apart.
Soon after reaching that milestone on July 29, the technology demonstration concluded the first phase of its operations since launching aboard Psyche on Oct. 13, 2023.
“The milestone is significant. Laser communication requires a very high level of precision, and before we launched with Psyche, we didn’t know how much performance degradation we would see at our farthest distances,” said Meera Srinivasan, the project’s operations lead at NASA’s Jet Propulsion Laboratory in Southern California. “Now the techniques we use to track and point have been verified, confirming that optical communications can be a robust and transformative way to explore the solar system.”
Managed by JPL, the Deep Space Optical Communications experiment consists of a flight laser transceiver and two ground stations. Caltech’s historic 200-inch (5-meter) aperture Hale Telescope at Caltech’s Palomar Observatory in San Diego County, California, acts as the downlink station to which the laser transceiver sends its data from deep space. The Optical Communications Telescope Laboratory at JPL’s Table Mountain facility near Wrightwood, California, acts as the uplink station, capable of transmitting 7 kilowatts of laser power to send data to the transceiver.
This visualization shows Psyche’s position on July 29 when the uplink station for NASA’s Deep Space Optical Communications sent a laser signal about 290 million miles to the spacecraft. See an interactive version of the Psyche spacecraft in NASA’s Eyes on the Solar System.NASA/JPL-Caltech By transporting data at rates up to 100 times higher than radio frequencies, lasers can enable the transmission of complex scientific information as well as high-definition imagery and video, which are needed to support humanity’s next giant leap when astronauts travel to Mars and beyond.
As for the spacecraft, Psyche remains healthy and stable, using ion propulsion to accelerate toward a metal-rich asteroid in the main asteroid belt between Mars and Jupiter.
Exceeding Goals
The technology demonstration’s data is sent to and from Psyche as bits encoded in near-infrared light, which has a higher frequency than radio waves. That higher frequency enables more data to be packed into a transmission, allowing far higher rates of data transfer.
Even when Psyche was about 33 million miles (53 million kilometers) away — comparable to Mars’ closest approach to Earth — the technology demonstration could transmit data at the system’s maximum rate of 267 megabits per second. That bit rate is similar to broadband internet download speeds. As the spacecraft travels farther away, the rate at which it can send and receive data is reduced, as expected.
On June 24, when Psyche was about 240 million miles (390 million kilometers) from Earth — more than 2½ times the distance between our planet and the Sun — the project achieved a sustained downlink data rate of 6.25 megabits per second, with a maximum rate of 8.3 megabits per second. While this rate is significantly lower than the experiment’s maximum, it is far higher than what a radio frequency communications system using comparable power can achieve over that distance.
This Is a Test
The goal of Deep Space Optical Communications is to demonstrate technology that can reliably transmit data at higher speeds than other space communication technologies like radio frequency systems. In seeking to achieve this goal, the project had an opportunity to test unique data sets like art and high-definition video along with engineering data from the Psyche spacecraft. For example, one downlink included digital versions of Arizona State University’s “Psyche Inspired” artwork, images of the team’s pets, and a 45-second ultra-high-definition video that spoofs television test patterns from the previous century and depicts scenes from Earth and space.
This 45-second ultra-high-definition video was streamed via laser from deep space by NASA’s Deep Space Optical Communications technology demonstration on June 24, when the Psyche spacecraft was 240 million miles from Earth. NASA/JPL-Caltech The technology demonstration beamed the first ultra-high-definition video from space, featuring a cat named Taters, from the Psyche spacecraft to Earth on Dec. 11, 2023, from 19 million miles away. (Artwork, images, and videos were uploaded to Psyche and stored in its memory before launch.)
“A key goal for the system was to prove that the data-rate reduction was proportional to the inverse square of distance,” said Abi Biswas, the technology demonstration’s project technologist at JPL. “We met that goal and transferred huge quantities of test data to and from the Psyche spacecraft via laser.” Almost 11 terabits of data have been downlinked during the first phase of the demo.
The flight transceiver is powered down and will be powered back up on Nov. 4. That activity will prove that the flight hardware can operate for at least a year.
“We’ll power on the flight laser transceiver and do a short checkout of its functionality,” said Ken Andrews, project flight operations lead at JPL. “Once that’s achieved, we can look forward to operating the transceiver at its full design capabilities during our post-conjunction phase that starts later in the year.”
More About Deep Space Optical Communications
This demonstration is the latest in a series of optical communication experiments funded by the Space Technology Mission Directorate’s Technology Demonstration Missions Program managed at NASA’s Marshall Space Flight Center in Huntsville, Alabama, and the agency’s SCaN (Space Communications and Navigation) program within the Space Operations Mission Directorate. Development of the flight laser transceiver is supported by MIT Lincoln Laboratory, L3 Harris, CACI, First Mode, and Controlled Dynamics Inc. Fibertek, Coherent, Caltech Optical Observatories, and Dotfast support the ground systems. Some of the technology was developed through NASA’s Small Business Innovation Research program.
For more information about the laser communications demo, visit:
https://www.jpl.nasa.gov/missions/dsoc
NASA’s Optical Comms Demo Transmits Data Over 140 Million Miles The NASA Cat Video Explained 5 Things to Know About NASA’s Deep Space Optical Communications News Media Contacts
Ian J. O’Neill
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-2649
ian.j.oneill@jpl.nasa.gov
2024-130
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Last Updated Oct 03, 2024 Related Terms
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