NG-23 Cygnus Release
Spacecraft Release
The Northrop Grumman NG-23 Cygnus will be unberthed from the ISS before initiating a destructive reentry into the Earth's atmosphere taking waste along with it.
Artemis II Flight Readiness Review News Conference
Press Event
NASA will host a news conference to highlight progress toward the Artemis II crewed mission around the Moon. The media briefing will take place from the agency’s Kennedy Space Center in Florida after the conclusion of an Artemis II Flight Readiness Review. NASA participants include: - Administrator Jared Isaacman - Lori Glaze, acting associate administrator, Exploration Systems Development Mission Directorate - John Honeycutt, chair, Artemis II Mission Management Team - Shawn Quinn, manager, Exploration Ground Systems Program - Norm Knight, director, Flight Operations Directorate
Progress MS-31 Undocking
Spacecraft Undocking
The Progress MS-31 spacecraft will undock from the Poisk module of the International Space Station. It will then de-orbit and burn up in the atmosphere.
US EVA-94
EVA
NASA astronauts Jessica Meir and Chris Williams will exit the station’s Quest airlock to prepare the 2A power channel for future installation of International Space Station Roll-Out Solar Arrays. Once installed, the array will provide additional power for the orbital laboratory, including critical support of its safe and controlled deorbit.
Artemis II SLS Rollout #2
Rollout
NASA will roll out their second fully stacked Space Launch System (SLS) rocket back to LC-39B after a rollback from the pad to investigate issues with the upper stage helium tanks. The rollout is expected to take up to 12 hours.
US EVA-95
EVA
Two astronauts will replace a high-definition camera on camera port 3, install a new navigational aid for visiting spacecraft, called a planar reflector, on the Harmony module’s forward port, and relocate an early ammonia servicer jumper — a flexible hose assembly that connects parts of a fluid system — along with other jumpers on the station’s S6 and S4 truss.
Hayabusa2 S-Type Asteroid (98943) Torifune Flyby
Flyby
As part of its mission extension, JAXA's Hayabusa2 spacecraft will observe S-type asteroid (98943) Torifune during a high-speed fly-by.
Juice Earth Flyby
Flyby
Third flyby of ESA's Jupiter Icy Moons Explorer (Juice) mission on its way to the Jovian system.
BepiColombo Mercury Orbit Insertion
Orbital Insertion
Orbital insertion around Mercury of the ESA-JAXA BepiColombo mission.
Solar Orbiter Venus Flyby
Flyby
Solar Orbiter, a partnership between ESA and NASA, will perform a gravity assist maneuver with Venus on December 24, 2026. Throughout its mission it also makes repeated gravity assist flybys of Venus to get closer to the Sun, and to change its orbital inclination, boosting it out of the ecliptic plane, to get the best – and first – views of the Sun’s poles.