US EVA-72 Friday, March 5th 2021 at 7:00 AM EST – On Friday, March 5, NASA and JAXA astronauts Kate Rubins and Soichi Noguchi will venture outside the orbiting outpost to vent ammonia from the Early Ammonia System and complete several other tasks. The pair will install a “stiffener” on the Quest airlock thermal cover to prevent it from blowing out when residual atmosphere escapes as the hatch is opened. Glover began addressing this issue on a previous spacewalk by installing a stronger magnet to keep the cover closed. The crew also will remove and replace a wireless video transceiver assembly. Rubins will be EV 1 and Noguchi will be EV 2.
SLS 2nd Hot Fire Test Saturday, March 6th 2021 at 7:00 PM EST – NASA plans to conduct a second Green Run hot fire test as early as the fourth week in February with the Space Launch System (SLS) rocket’s core stage that will launch the Artemis I mission to the Moon. The four RS-25 engines will be fired for 8 minutes, demonstrating performance similar to an actual launch.
Soyuz MS-17 Relocation Friday, March 19th 2021 at 12:43 PM EDT – The Soyuz MS-17 spacecraft will be relocated from the Rassvet module to the Poisk module. Undocking scheduled at 16:43 UTC, redocking scheduled at 17:13 UTC.
Tianwen-1 Rover Landing Wednesday, March 31st 2021 at 8:00 PM EDT – The Tianwen-1 rover will attempt to land on Mars using a parachute to slow down and a propulsive landing for the final 1.5km of the descent.
OSIRIS-Rex Sample Return Friday, September 1st 2023 at 12:00 AM EDT – In September 2023 the OSIRIS-REx return capsule will re-enter Earth’s atmosphere and land under a parachute at the Air Force’s Utah Test and Training Range