SpaceX's CRS-29 mission departed from the International Space Station (ISS) yesterday evening while flying over South America. The mission flew to the International Space Station in early October, carrying a variety of payloads including scientific and research experiments. The CRS-29 mission is one of the more important missions in NASA's inventory because it delivers important experiments such as laser communications and Earth imaging equipment to the International Space Station.
The spacecraft lifted off in November, marking SpaceX's 80th mission in 2023, carrying 6,500 pounds of cargo during the ascent stage. After detaching from the International Space Station at 5:05 p.m. ET, Cargo Dragon is scheduled to splash down from Cost, Florida, and return to Earth within 20 hours.
The "Cargo Dragon" carrying out the CRS-29 mission will carry 4,300 pounds of cargo back to Earth. Before that, the equipment carried by the "Cargo Dragon" will be used by the National Aeronautics and Space Administration (NASA) to create a two-way laser communication system and monitor atmospheric radio waves. Completed research experiments and other items returned with the Dragon.
NASA continues to conduct scientific experiments for its own scientists and other researchers on the International Space Station. The ISS's unique microgravity environment allows scientists and researchers to observe whether materials behave differently on the ISS than on Earth. Some of the research that will return to Earth involves studying plant genetics and the effects of microgravity on cells. Another experiment returning on CRS29 measured telomeres in space. Telomeres are structures at the ends of DNA strands, and while they shorten as we age, previous research has shown that they lengthen in space.
After landing, the Cargo Dragon spacecraft will complete its second commercial resupply service mission for NASA. It previously carried out the CRS-26 mission in November 2022, and this year's launch marks the completion of a year-long turnaround time for this special Dragon spacecraft.
NASASpaceX's next cargo mission is CRS30, which is currently expected to launch in March next year. Over the years, SpaceX has upgraded the Dragon spacecraft many times, and the latest batch of upgrades is called the Dragon 2 spacecraft. Now, all Dragon spacecraft missions, whether carrying people or cargo, use the Dragon 2 spacecraft, and the CRS29 mission is the ninth flight of the upgraded spacecraft.
The two important scientific experiments on CRS29 are the Atmospheric Wave Experiment (AWE) and ILLUMA-T. The Atmospheric Wave Experiment (AWE) is an imaging scientific study that observes upper regions of the atmosphere where waves exist. Researchers believe these waves allow them to study Earth's climate in a better way than they can on the ground.
ILLUMA-T uses a laser communications repeater located on a geostationary satellite and another terminal sent to the International Space Station. The terminal is designed to demonstrate laser-based communications for future missions, and NASA completed the first laser link to a satellite and corresponding ground system on December 5. Due to low space interference, the system can transmit data from the space station to satellites at a speed of 1.2Gbps, exceeding most broadband Internet systems on Earth.