Return of the GEDI: Space Station Instrument Returns to Forest Monitoring

That’s no moon, that’s a space station!

The return of NASA’s GEDI (Global Ecosystem Dynamics Investigation) is underway, as the agency’s very own “lightsaber” will soon be back to measuring forests in three dimensions after it was reinstalled on the International Space Station April 22.

Measuring distances with similar principles as sonar, a lidar instrument uses light instead of sound. Rather than working on a forest moon in a galaxy far, far away, the instrument works much closer to home: measuring Earth’s forest structure including the height of the canopy, density of vegetation, and the distribution of branches and leaves.

As an instrument of the light side, GEDI is readying for its second mission aboard the space station.

After completing its extended mission in March 2023, a robotic arm was used to move GEDI temporarily to an exterior storage site on the space station for hibernation. Soon after reinstallation, teams began testing it for any forms of hibernation sickness and expect it will begin gathering data again this summer.

The force is strong with this one

Scientists used GEDI data to map Earth’s biomass and track how forests respond to climate change and land use impacts. Data from GEDI has helped to measure the height of forests across the globe in greater detail than ever before, and also to quantify the impact of protected areas on carbon sequestration.

Learn more about NASA’s GEDI master: https://nasa.gov/GEDI

NASA, SpaceX Adjust Crew-2 Station Departure Date

NASA’s SpaceX Crew-2 mission now is targeting a return to Earth no earlier than 10:33 p.m. EST Monday, Nov. 8, with a splashdown off the coast of Florida. The Crew Dragon spacecraft, named Endeavour, is scheduled to undock from the International Space Station at 2:05 p.m. Monday, Nov. 8, to begin the journey home. Mission teams decided to adjust the Sunday, Nov. 7, undocking following a planned weather review showing high winds unfavorable for recovery near the splashdown zone in the Gulf of Mexico.

NASA will provide coverage of the mission on NASA Television, the NASA app, and the agency’s website.

NASA astronauts Shane Kimbrough and Megan McArthur, JAXA (Japan Aerospace Exploration Agency) astronaut Aki Hoshide, and ESA (European Space Agency) astronaut Thomas Pesquet will complete 199 days in space at the conclusion of their mission. The spacecraft also will return to Earth with about 530 pounds of hardware and scientific investigations.

Endeavour will undock autonomously and perform a fly around maneuver to photograph the exterior of the International Space Station. Once the maneuver is completed, the Crew Dragon spacecraft will aim for a splashdown at one of seven targeted landing zones in the Atlantic Ocean or Gulf of Mexico off the coast of Florida.

The NASA and SpaceX teams will determine a primary and alternate splashdown location from the seven possible landing locations prior to return, factoring in weather, crew rescue, and recovery operations. Additional decision milestones take place prior to undocking, during free flight, and before Crew Dragon performs the deorbit burn.

NASA and SpaceX closely coordinate with the U.S. Coast Guard to establish a safety zone around the expected splashdown location to ensure safety for the public and for those involved in the recovery operations, as well as the crew aboard the returning spacecraft.

With Crew-2 splashdown Monday, Nov. 8, NASA’s SpaceX Crew-3 mission is targeting launch no earlier than 9:03 p.m. Wednesday, Nov. 10, on a SpaceX Falcon 9 rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. For this launch opportunity, the Crew Dragon Endurance is scheduled to dock to the space station around 7:10 p.m. Thursday, Nov. 11.

NASA’s SpaceX Crew-2 return coverage is as follows:

Monday, Nov. 8

11:45 a.m. EST– Coverage begins for 12:40 p.m. hatch closure

1:45 p.m. EST– Coverage begins for 2:05 p.m. undocking (NASA will provide continuous coverage from undocking to splashdown)

10:33 p.m. EST– Splashdown

Crew-2 is the second of six NASA and SpaceX crewed missions to fly as part of the agency’s Commercial Crew Program, which is working with the U.S. aerospace industry to launch astronauts on American rockets and spacecraft from American soil.

NASA’s Commercial Crew Program has delivered on its goal of safe, reliable, and cost-effective transportation to and from the International Space Station from the U.S. through a partnership with American private industry. This partnership is changing the arc of human spaceflight history by opening access to low-Earth orbit and the International Space Station to more people, more science, and more commercial opportunities. The space station remains the springboard to NASA’s next great leap in space exploration, including future missions to the Moon and, eventually, to Mars.

Expedition 57 Space Station Status Briefing

NASA held a news conference at noon EDT, Oct. 11, from Johnson Space Center in Houston, to provide a status update on the International Space Station following this morning’s Soyuz spacecraft abort during launch that ended with the safe landing of two Expedition 57 crew members. Participants are Kenny Todd, International Space Station Operations Integration Manager and Reid Wiseman, Deputy Chief Astronaut.