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X-WR-CALNAME:Space Calendar
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X-WR-CALDESC:Events for Space Calendar
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20260806
DTEND;VALUE=DATE:20260807
DTSTAMP:20260814T034300Z
CREATED:20260731T024443Z
LAST-MODIFIED:20260814T034300Z
UID:10001411-1785974400-1786060799@spacecalendar.com
SUMMARY:U.S. ISS Spacewalk 96
DESCRIPTION:NASA astronauts Jessica Meir and Anil Menon will exit the Quest airlock to install hardware that will modify the station’s 3B power channel and prepare it for the future installation of an International Space Station Roll-Out Solar Array (IROSA). The solar array\, scheduled for delivery later this year\, will be the seventh IROSA and will provide additional power to support critical station operations\, including its safe and controlled deorbit. \nWatch NASA’s live coverage of U.S. spacewalk 96 beginning at 7 a.m. The spacewalk is expected to start at 8:35 a.m. and last about six and a half hours. \nThis spacewalk will be the sixth for Meir and the first for Menon. Meir will serve as spacewalk crew member 1 and will wear a suit with red stripes. Menon will serve as crew member 2 and will wear an unmarked suit.
URL:https://spacecalendar.com/event/u-s-spacewalk-96/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone
ATTACH;FMTTYPE=image/jpeg:https://spacecalendar.com/wp-content/uploads/2025/10/ISS-Human-Occupation.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260804
DTEND;VALUE=DATE:20260805
DTSTAMP:20260731T025947Z
CREATED:20260731T025947Z
LAST-MODIFIED:20260731T025947Z
UID:10001415-1785801600-1785887999@spacecalendar.com
SUMMARY:NASA Astronaut Chris Williams Post-ISS Mission Debrief
DESCRIPTION:2:45 pm EDT from Johnson Space Center\, NASA astronaut Chris Williams will recap his recent eight-month mission aboard the International Space Station. Williams returned to Earth on July 26\, after logging 241 days as an Expedition 73/74 flight engineer during his first spaceflight. He returned along with Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev\, completing 3\,856 orbits of the Earth over the course of their more than 102-million-mile journey. They also saw the arrival of six visiting spacecraft and the departure of eight. \nDuring his mission\, Williams supported a wide range of scientific investigations and technology demonstrations. He helped advance research for new cancer treatments and improved in-space manufacturing of materials used in high-performance computers and electronics. Williams also completed two spacewalks to prep for space station power system upgrades and to replace a faulty joint on the Canadarm2 robotic arm. The crew’s work aboard the space station helps improve life on Earth and prepare for future human missions to the Moon and Mars. \n 
URL:https://spacecalendar.com/event/nasa-astronaut-chris-williams-post-iss-mission-debrief/
LOCATION:Online
CATEGORIES:Mission Milestone
ATTACH;FMTTYPE=image/jpeg:https://spacecalendar.com/wp-content/uploads/2026/07/Astronaut-Chris-Williams.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260726
DTEND;VALUE=DATE:20260727
DTSTAMP:20260730T201349Z
CREATED:20260708T033200Z
LAST-MODIFIED:20260730T201349Z
UID:10001378-1785024000-1785110399@spacecalendar.com
SUMMARY:Soyuz MS-28 / Crew Return to Earth
DESCRIPTION:Sergey Kud-Sverchkov\, Sergey Mikayev and Christopher Williams set to undock from ISS in Soyuz MS-28\, triggering the start to Expedition 75 with Commander Jessica Meir.
URL:https://spacecalendar.com/event/soyuz-ms-28-crew-return-to-earth/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone
ATTACH;FMTTYPE=image/jpeg:https://spacecalendar.com/wp-content/uploads/2026/07/Soyus-MS-28-Undock.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260725
DTEND;VALUE=DATE:20260726
DTSTAMP:20260730T201349Z
CREATED:20260718T004418Z
LAST-MODIFIED:20260730T201349Z
UID:10001396-1784937600-1785023999@spacecalendar.com
SUMMARY:ISS Change of Command - Jessica Meir Becomes Exp 75 Commander
DESCRIPTION:NASA astronaut Jessica Meir takes command of ISS during changeover\, followed by three Expedition 74 crew members returning to Earth.
URL:https://spacecalendar.com/event/iss-change-of-command-jessica-meir-becomes-exp-75-commander/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone
ATTACH;FMTTYPE=image/jpeg:https://spacecalendar.com/wp-content/uploads/2026/07/Jessica-Meir.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260705
DTEND;VALUE=DATE:20260706
DTSTAMP:20260730T201350Z
CREATED:20250618T014138Z
LAST-MODIFIED:20260730T201350Z
UID:10000183-1783209600-1783295999@spacecalendar.com
SUMMARY:Hayabusa 2\, Asteroid 98943 Torifune Flyby
DESCRIPTION:JAXA Hayabusa 2 mission to flyby S-type asteroid 98943 Torifune within 1 to 10 km of the asteroid’s surface at a relative velocity of approximately 5 km/s. The mission is planned to rendezvous with asteroid 1998 KY26 in 2031\, after returning samples from (162173) Ryugu to Earth in 2020.
URL:https://spacecalendar.com/event/net-jul-hayabusa-2/
LOCATION:Asteroid 98943 Torifune Trajectory
CATEGORIES:Mission Milestone
ATTACH;FMTTYPE=image/jpeg:https://spacecalendar.com/wp-content/uploads/2025/06/Haybusa-2.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260704
DTEND;VALUE=DATE:20260705
DTSTAMP:20260730T201350Z
CREATED:20250618T014502Z
LAST-MODIFIED:20260730T201350Z
UID:10000184-1783123200-1783209599@spacecalendar.com
SUMMARY:Tianwen-2 to Begin Collecting Samples of Asteroid Kamo’oalewa (2016 HO3)
DESCRIPTION:After arriving at Kamo’oalewa on June 7\, China asteroid sample return mission planned to collect at least 100 grams via anchoring-drilling\, hover-sampling and touch-and-go techniques; scheduled to depart Apr 24\, 2027 and return to Earth Nov 29\, 2027.
URL:https://spacecalendar.com/event/tianwen-2/
LOCATION:Near-Earth Object (NEO)
CATEGORIES:Mission Milestone
ATTACH;FMTTYPE=image/jpeg:https://spacecalendar.com/wp-content/uploads/2025/06/TIanwen-2.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260607
DTEND;VALUE=DATE:20260608
DTSTAMP:20260730T201404Z
CREATED:20260605T020330Z
LAST-MODIFIED:20260730T201404Z
UID:10001341-1780790400-1780876799@spacecalendar.com
SUMMARY:Tianwen-2 Enters Orbit of Asteroid Kamo'oalewa
DESCRIPTION:Sample-return spacecraft Tianwen-2 will perform an orbit-insertion burn at asteroid 469219 Kamoʻoalewa on Sunday\, June 7\, 13 months after its launch in May 2025. It is expected to begin collecting samples early next month. https://www.techtimes.com/articles/317613/20260602/tianwen-2-asteroid-orbit-insertion-set-june-7-amateurs-decode-telemetry.htm \nKamoʻoalewa\, formally designated 2016 HO3\, was discovered in April 2016 by the Pan-STARRS 1 telescope operated at Haleakala Observatory in Hawaii. It is between 40 and 100 meters in diameter — roughly the size of a large building — and is the smallest asteroid ever to be visited by a spacecraft. The object occupies an unusual quasi-satellite orbit\, looping around the Sun in a path that keeps it perpetually near Earth without being gravitationally captured by our planet. That stability will last only about three centuries before gravitational perturbations shift it elsewhere. \nWhat makes Kamoʻoalewa a priority science target is its reflectance spectrum. Unlike most near-Earth asteroids\, which tend toward carbonaceous or stony compositions\, its spectrum closely resembles the lunar silicate material studied in NASA’s Apollo samples.
URL:https://spacecalendar.com/event/tianwen-2-enters-orbit-of-asteroid-kamooalewa/
LOCATION:Near-Earth Object (NEO)
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260605
DTEND;VALUE=DATE:20260606
DTSTAMP:20260730T201404Z
CREATED:20250618T012040Z
LAST-MODIFIED:20260730T201404Z
UID:10000181-1780617600-1780703999@spacecalendar.com
SUMMARY:Tiangong Space Station: 4 Years of Continuous Human Occupation
DESCRIPTION:Today marks 4th full year / starts 5th year of continuous Human occupation of TSS; Shenzhou 14 three-member crew launched on this day in 2022\, beginning occupation.
URL:https://spacecalendar.com/event/tiangong-space-station/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone,Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260515
DTEND;VALUE=DATE:20260516
DTSTAMP:20260730T201405Z
CREATED:20240508T232054Z
LAST-MODIFIED:20260730T201405Z
UID:10001278-1778803200-1778889599@spacecalendar.com
SUMMARY:Psyche Spacecraft Uses Mars for Gravity Assist
DESCRIPTION:On its way to the asteroid Psyche\, the Psyche spacecraft will pass within 4\,500 km of Mars and will harness the planet’s gravitational pull to speed up and adjust its trajectory toward the metal-rich asteroid. The spacecraft was launched October 13\, 2023\, and by August 2029\, the spacecraft will begin to orbit the 173-mile-wide (279-kilometer-wide) asteroid – the only metal-class asteroid ever to be explored. Because of Psyche’s high iron-nickel metal content\, scientists think it may be the partial core of a planetesimal\, a building block of an early planet. The goal is a 26-month science investigation. https://www.nasa.gov/news-release/nasas-psyche-spacecraft-optical-comms-demo-en-route-to-asteroid/
URL:https://spacecalendar.com/event/psyche-spacecraft-uses-mars-for-gravity-assist/
LOCATION:Mars Orbit
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260427
DTEND;VALUE=DATE:20260428
DTSTAMP:20260730T201420Z
CREATED:20250421T033151Z
LAST-MODIFIED:20260730T201420Z
UID:10001243-1777248000-1777334399@spacecalendar.com
SUMMARY:Progress MS-34 (95P) Docks With ISS
DESCRIPTION:Expected 2 days after launch from Kazakhstan\, arriving ~22:21 UTC with ~7\,280 kg of cargo.
URL:https://spacecalendar.com/event/progress-ms-34-95p-docks-with-iss/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260410
DTEND;VALUE=DATE:20260411
DTSTAMP:20260730T201434Z
CREATED:20250403T222820Z
LAST-MODIFIED:20260730T201434Z
UID:10001186-1775779200-1775865599@spacecalendar.com
SUMMARY:Artemis II Splashdown in the Pacific Ocean Near San Diego CA\, USA
DESCRIPTION:Expected for 17:07 PDT | 14:07 HST | 20:07 EDT | 00:07 UTC\, after ~10-day journey around the Moon and 4-day return to Earth from Moon. A joint team of NASA specialists and U.S. Navy divers will secure the capsule\, check for hazards\, and recover the crew. Five large airbags will inflate to ensure the capsule is upright.
URL:https://spacecalendar.com/event/artemis-ii-splashdown-in-the-pacific-ocean-near-san-diego-ca-usa/
LOCATION:Pacific Ocean
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260318
DTEND;VALUE=DATE:20260319
DTSTAMP:20260730T201449Z
CREATED:20250101T214144Z
LAST-MODIFIED:20260730T201449Z
UID:10000063-1773792000-1773878399@spacecalendar.com
SUMMARY:ISS / U.S. EVA #94
DESCRIPTION:NASA Astronauts Jessica Meir and Chris Williams will conduct U.S. spacewalk 94\, exiting the Quest airlock at about 08:00 EDT | 12:00 UTC | 02:00 HST (video coverage beginning 1.5 hours ahead) to prepare the 2A power channel for the future International Space Station Roll-Out Solar Arrays (IROSA) installation. It will be Meir’s fourth spacewalk and Williams’s first and is expected to last about 6-1/2 hours. \nLearn more about the International Space Station: https://nasa.gov/station\nRead the latest mission updates from the station: https://nasa.gov/blogs/spacestation/ \nFor U.S. spacewalk 95\, planned for April\, 2 NASA Astronauts (yet to be named) will prepare the station’s 3B power channel for a future IROSA installation. NASA will provide more information on the date and time of the spacewalk\, and other details\, closer to the operation. \nThe spacewalks will be the 278th and 279th supporting space station assembly\, maintenance and upgrades. They also are the first two ISS spacewalks of 2026 and the first for Expedition 74. Spacewalks 94 and 95 originally were scheduled for January\, but the target dates were adjusted after the early departure of NASA’s SpaceX Crew‑11 mission.
URL:https://spacecalendar.com/event/iss-nasa-eva-2nd-of-2-spacewalks/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260226
DTEND;VALUE=DATE:20260227
DTSTAMP:20260730T201450Z
CREATED:20260205T222844Z
LAST-MODIFIED:20260730T201450Z
UID:10000656-1772064000-1772150399@spacecalendar.com
SUMMARY:Cargo Dragon Undocking
DESCRIPTION:After a final reboost of the ISS\, CRS-33\, SpaceX Cargo Dragon\, is scheduled to undock from the International Space Station for return to Earth\, with research samples and cargo\, via spashdown in the Pacific Ocean. \nThe reboost capability of Dragon is from the “kit” attached to the outside of the spacecraft that has 6 propellant tanks and 2 thrusters and that will be discarded to burn up on re-entry. \nThe pressurized capsule that splashes down will be refurbished and reused.
URL:https://spacecalendar.com/event/cargo-dragon-undocking/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20251209
DTEND;VALUE=DATE:20251210
DTSTAMP:20260730T201516Z
CREATED:20250124T204610Z
LAST-MODIFIED:20260730T201516Z
UID:10000049-1765238400-1765324799@spacecalendar.com
SUMMARY:Soyuz MS-27 Undocking\, Expedition 74 Mission Begins
DESCRIPTION:ISS Expedition 73 members Sergey Ryzhikov\, Alexey Zubritsky and Jonny Kim planned to return to Earth today in Roscosmos Soyuz MS-27 craft\, landing in Kazakhstan.
URL:https://spacecalendar.com/event/soyuz-ms-27-undocking-expedition-74-mission-begins/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20251102
DTEND;VALUE=DATE:20251103
DTSTAMP:20260730T201529Z
CREATED:20251024T202116Z
LAST-MODIFIED:20260730T201529Z
UID:10000577-1762041600-1762127999@spacecalendar.com
SUMMARY:International Space Station: 25 Years of Continuous Human Occupation
DESCRIPTION:Today marks 25 full years / start to 26th year of continuous Human occupation of ISS; first component Zarya launched Nov 20\, 1998\, occupation began Nov 2\, 2000.
URL:https://spacecalendar.com/event/international-space-station-25-years-of-continuous-human-occupation/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Mission Milestone,Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250917
DTEND;VALUE=DATE:20250918
DTSTAMP:20260730T201558Z
CREATED:20251126T015722Z
LAST-MODIFIED:20260730T201558Z
UID:10000719-1758067200-1758153599@spacecalendar.com
SUMMARY:Juno Perijove 76 / 75th Science Flyby
DESCRIPTION:NASA craft to perform Jupiter flyby during Perijove 76\, its 76th close flyby of Jupiter and 75th science flyby with instruments turned on – to be last flyby of planet before controlled impact into Jupiter clouds.
URL:https://spacecalendar.com/event/juno-perijove-76-75th-science-flyby/
LOCATION:Jupiter Orbit
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250815
DTEND;VALUE=DATE:20250816
DTSTAMP:20260730T201558Z
CREATED:20251024T202546Z
LAST-MODIFIED:20260730T201558Z
UID:10000595-1755216000-1755216000@spacecalendar.com
SUMMARY:Juno\, Perijove 75 / 74th Science Flyby
DESCRIPTION:NASA craft to perform Jupiter flyby during Perijove 75\, its 75th close flyby of Jupiter and 74th science flyby with instruments turned on.
URL:https://spacecalendar.com/event/juno-perijove-75-74th-science-flyby/
LOCATION:Jupiter Orbit
CATEGORIES:Mission Milestone
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250801
DTEND;VALUE=DATE:20250802
DTSTAMP:20260730T201558Z
CREATED:20251024T202547Z
LAST-MODIFIED:20260730T201558Z
UID:10000601-1754006400-1754092799@spacecalendar.com
SUMMARY:NET Aug — Jupiter Icy Moons Explorer (JUICE) to perform flyby of Venus this month
DESCRIPTION:ESA Jupiter Icy Moons Explorer (JUICE) expected to perform flyby of Venus this month\, arriving at Jupiter in 2031.
URL:https://spacecalendar.com/event/net-aug-jupiter-icy-moons-explorer-juice/
LOCATION:Jupiter Trajectory
CATEGORIES:Mission Milestone
END:VEVENT
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