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BEGIN:STANDARD
TZOFFSETFROM:+0500
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DTSTART:20270101T000000
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20280401
DTEND;VALUE=DATE:20280402
DTSTAMP:20260613T062258
CREATED:20251024T200722Z
LAST-MODIFIED:20251024T200722Z
UID:10000440-1838160000-1838246399@spacecalendar.com
SUMMARY:NET Apr — End of Nominal Mission for BepiColombo
DESCRIPTION:NET Apr — European Space Agency / JAXA Mercury Magnetospheric Orbiter (BepiColombo) nominal mission ends this month\, 5.82 Mercury years after orbit insertion; potential extended mission and plans TBD.
URL:https://spacecalendar.com/event/net-apr-end-of-nominal-mission-for-bepicolombo/
LOCATION:Mercury Orbit
CATEGORIES:Space Event / Encounter
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280410
DTEND;VALUE=DATE:20280411
DTSTAMP:20260613T062258
CREATED:20251024T200722Z
LAST-MODIFIED:20251024T200722Z
UID:10000423-1838937600-1839023999@spacecalendar.com
SUMMARY:Pōwehi Day
DESCRIPTION:Recognized proclamation to celebrate the first-ever imaged black hole M87* by Event Horizon Telescope collaboration involving Mauna Kea Observatories\, given the Hawaiian name Pōwehi; imaged in April 2017 and released Apr 10\, 2019.
URL:https://spacecalendar.com/event/powehi-day-4/
LOCATION:Statewide Hawai’i\, USA
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280412
DTEND;VALUE=DATE:20280413
DTSTAMP:20260613T062258
CREATED:20251024T200721Z
LAST-MODIFIED:20251024T200721Z
UID:10000409-1839110400-1839196799@spacecalendar.com
SUMMARY:Yuri’s Night Celebrations
DESCRIPTION:Launching parties around the world every year on or around April 12th\, in commemoration of Yuri Gagarin becoming the first human to venture into space on April 12\, 1961\, and the inaugural launch of the first Space Shuttle on April 12\, 1981. We use space to bring the world together\, to empower the greatest parts of who we are\, and give vision to where we are going. \nYuri’s Night was inaugurated April 12\, 2001.
URL:https://spacecalendar.com/event/yuris-night-celebrations-4/
LOCATION:Worldwide
CATEGORIES:Meeting / Conference / Symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280412
DTEND;VALUE=DATE:20280413
DTSTAMP:20260613T062258
CREATED:20251024T200722Z
LAST-MODIFIED:20251024T200722Z
UID:10000422-1839110400-1839196799@spacecalendar.com
SUMMARY:67th Commemoration of Human Spaceflight / Cosmonautics Day
DESCRIPTION:Celebrating Yuri Gagarin\, the 1st human to orbit Earth on Vostok 1 spacecraft in 1961; the flight lasted 108 minutes at 27\,400 kph and 327 km above Earth.
URL:https://spacecalendar.com/event/67th-commemoration-of-human-spaceflight-cosmonautics-day/
LOCATION:Worldwide
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280418
DTEND;VALUE=DATE:20280419
DTSTAMP:20260613T062258
CREATED:20251024T200721Z
LAST-MODIFIED:20251024T200721Z
UID:10000413-1839628800-1839715199@spacecalendar.com
SUMMARY:Lucy Spacecraft to Fly By Asteroid 11351 Leucus
DESCRIPTION:NASA’s Lucy mission\, to encounter 11 asteroids including a main belt and 7 Jupiter Trojans\, planned to come within 1\,000 km of 34-km diameter 11351 Leucus asteroid today.
URL:https://spacecalendar.com/event/lucy-spacecraft-to-fly-by-asteroid-11351-leucus/
LOCATION:Jupiter Greek camp at Lagrangian point L4
CATEGORIES:Space Event / Encounter
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280424
DTEND;VALUE=DATE:20280425
DTSTAMP:20260613T062258
CREATED:20251024T200721Z
LAST-MODIFIED:20251024T200721Z
UID:10000402-1840147200-1840233599@spacecalendar.com
SUMMARY:Hubble Space Telescope Begins Next Year in Space
DESCRIPTION:NASA spacecraft with 2.4-meter diameter main telescope begins 39th year in space today\, launched Apr 24\, 1990; could continue operations until 2040s.
URL:https://spacecalendar.com/event/hubble-space-telescope-begins-next-year-in-space-2/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280424
DTEND;VALUE=DATE:20280425
DTSTAMP:20260613T062258
CREATED:20251024T200721Z
LAST-MODIFIED:20251024T200721Z
UID:10000407-1840147200-1840233599@spacecalendar.com
SUMMARY:National Day of Space Flight
DESCRIPTION:Commemorating the launch of China’s first satellite\, Dongfanghong-1 on April 24\, 1970.
URL:https://spacecalendar.com/event/national-day-of-space-flight-4/
LOCATION:China (Zhongguo)
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280505
DTEND;VALUE=DATE:20280506
DTSTAMP:20260613T062258
CREATED:20251024T200721Z
LAST-MODIFIED:20251024T200721Z
UID:10000405-1841097600-1841183999@spacecalendar.com
SUMMARY:International Space Day
DESCRIPTION:First Friday in May\, events and presentations to promote STEM education and inspire people to continue the work of Space explorers; originally began as ‘National Space Day’ in 1997 by Lockheed Martin Corp.
URL:https://spacecalendar.com/event/international-space-day-4/
LOCATION:Worldwide
CATEGORIES:Meeting / Conference / Symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280601
DTEND;VALUE=DATE:20280602
DTSTAMP:20260613T062258
CREATED:20251024T200721Z
LAST-MODIFIED:20251024T200721Z
UID:10000411-1843430400-1843516799@spacecalendar.com
SUMMARY:NET Jun — Hayabusa 2\, Second Earth Flyby
DESCRIPTION:☆ NET Jun — JAXA Hayabusa 2 mission to perform second flyby Earth today on way to rendezvous with asteroid 1998 KY26 in 2031\, after returning samples from (162173) Ryugu to Earth in 2020 and flying by asteroid 98943 Torifune in 2026.
URL:https://spacecalendar.com/event/net-jun-hayabusa-2-second-earth-flyby/
LOCATION:Earth Trajectory
CATEGORIES:Space Event / Encounter
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280605
DTEND;VALUE=DATE:20280606
DTSTAMP:20260613T062258
CREATED:20240124T200721Z
LAST-MODIFIED:20260130T011214Z
UID:10000014-1843776000-1843862399@spacecalendar.com
SUMMARY:Tiangong Space Station (TSS) Begins Next Year of Continuous Human Occupation
DESCRIPTION:Today marks 6th full year / starts 7th 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-3/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280605
DTEND;VALUE=DATE:20280610
DTSTAMP:20260613T062258
CREATED:20260130T010848Z
LAST-MODIFIED:20260130T010848Z
UID:10000991-1843776000-1844207999@spacecalendar.com
SUMMARY:AIAA Aviation Forum 2028
DESCRIPTION:The only aviation event that covers the entire integrated spectrum of aviation business\, research\, development and technology. At Manchester Grand Hyatt.
URL:https://spacecalendar.com/event/aiaa-aviation-forum-2028/
LOCATION:San Diego CA\, USA
CATEGORIES:Meeting / Conference / Symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280611
DTEND;VALUE=DATE:20280616
DTSTAMP:20260613T062258
CREATED:20251024T200720Z
LAST-MODIFIED:20251024T200720Z
UID:10000398-1844294400-1844726399@spacecalendar.com
SUMMARY:252nd Meeting of the AAS
DESCRIPTION:At Monona Terrace.
URL:https://spacecalendar.com/event/252nd-meeting-of-the-aas/
LOCATION:Madison WI\, USA
CATEGORIES:Meeting / Conference / Symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280623
DTEND;VALUE=DATE:20280624
DTSTAMP:20260613T062258
CREATED:20251031T210359Z
LAST-MODIFIED:20260515T025114Z
UID:10000637-1845331200-1845417599@spacecalendar.com
SUMMARY:19th Anniversary of Lunar Reconnaissance Orbiter (LRO) Entering Moon Orbit
DESCRIPTION:NASA spacecraft reaches 19 full years in Moon orbit today; launched Jun 18\, 2009\, arrived at Moon 5 days later.
URL:https://spacecalendar.com/event/lunar-reconnaissance-orbiter-lro-begins-next-year-in-moon-orbit-3/
LOCATION:Moon Orbit
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280627
DTEND;VALUE=DATE:20280628
DTSTAMP:20260613T062258
CREATED:20251024T200720Z
LAST-MODIFIED:20251024T200720Z
UID:10000400-1845676800-1845763199@spacecalendar.com
SUMMARY:Acceleration\, Reconnection\, Turbulence and Electrodynamics of the Moon’s Interaction with the Sun (ARTEMIS) P1\, Begins Next Year in Space
DESCRIPTION:NASA ARTEMIS P1 craft surpasses another year in lunar orbit since 2011; it was 1 of 5 satellites launched 2007 to study Earth magnetosphere.
URL:https://spacecalendar.com/event/acceleration-reconnection-turbulence-and-electrodynamics-of-the-moons-interaction-with-the-sun-artemis-p1-begins-next-year-in-space-2/
LOCATION:Earth-Moon L2 Lagrange point
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280630
DTEND;VALUE=DATE:20280701
DTSTAMP:20260613T062258
CREATED:20260128T215414Z
LAST-MODIFIED:20260128T215414Z
UID:10000646-1845936000-1846022399@spacecalendar.com
SUMMARY:Asteroid Day 2028
DESCRIPTION:UN-Sanctioned annual\, global asteroid awareness program supporting thousands of independently organized events\, providing educational resources; held on June 30\, the anniversary of the Tunguska event in 1908 when a meteor air burst levelled about 2\,150 km² of forest in Siberia\, Russia.
URL:https://spacecalendar.com/event/asteroid-day-2028/
LOCATION:Worldwide
CATEGORIES:Meeting / Conference / Symposium,Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280701
DTEND;VALUE=DATE:20280702
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000200-1846022400-1846108799@spacecalendar.com
SUMMARY:NET Q3 2028 — Launch Long March 5 / Chang’E-8
DESCRIPTION:NET Q3 2028 — Chang’E-8 planned to land at Moon South Pole with 10 international projects to conduct in-situ resource utilization experiments; mission includes lander\, Pakistan SUPARCO rover\, robots for supporting international lunar base buildout.
URL:https://spacecalendar.com/event/net-q3-2028-launch-long-march-5-change-8/
LOCATION:Wenchang Space Launch Center\, ~19°N\, Hainan Island\, China
CATEGORIES:Launch
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280717
DTEND;VALUE=DATE:20280718
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000195-1847404800-1847491199@spacecalendar.com
SUMMARY:Acceleration\, Reconnection\, Turbulence and Electrodynamics of the Moon’s Interaction with the Sun (ARTEMIS) P2 Begins Next Year in Space
DESCRIPTION:NASA ARTEMIS P2 craft surpasses another full year in lunar orbit since 2011; 1 of 5 satellites launched 2007 to study Earth magnetosphere
URL:https://spacecalendar.com/event/acceleration-reconnection-turbulence-and-electrodynamics-of-the-moons-interaction-with-the-sun-artemis-p2-begins-next-year-in-space-3/
LOCATION:Earth-Moon L1 Lagrange point
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280720
DTEND;VALUE=DATE:20280721
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000197-1847664000-1847750399@spacecalendar.com
SUMMARY:Viking 1 Mars Lander 52nd Landing Observation Anniversary
DESCRIPTION:First USA spacecraft to successfully land on another planet commemorated today for its accomplishment 52 years ago; originally scheduled for July 4\, landing was delayed until this day in 1976 due to rough landing site.
URL:https://spacecalendar.com/event/viking-1-mars-lander-52nd-landing-observation-anniversary/
LOCATION:Nationwide USA
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280720
DTEND;VALUE=DATE:20280721
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000198-1847664000-1847750399@spacecalendar.com
SUMMARY:Apollo 11\, 59th Observation
DESCRIPTION:First Human mission to land on Moon in 1969; 1st steps by humans on another World taken by Commander Neil Armstrong and Lunar Module Pilot Buzz Aldrin; Command Module piloted by Michael Collins.
URL:https://spacecalendar.com/event/apollo-11-59th-observation/
LOCATION:Global / Inter-Global
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280720
DTEND;VALUE=DATE:20280721
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000187-1847664000-1847750399@spacecalendar.com
SUMMARY:International Moon Day (Annual)
DESCRIPTION:Celebrating the 1st people walking on the Moon / another celestial body – International Moon Day has been a recognized / endorsed declaration by the United Nations since 2022.
URL:https://spacecalendar.com/event/international-moon-day-annual-4/
LOCATION:Global / Inter-Global
CATEGORIES:Meeting / Conference / Symposium,Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280812
DTEND;VALUE=DATE:20280813
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000193-1849651200-1849737599@spacecalendar.com
SUMMARY:Parker Solar Probe Begins Next Year in Space
DESCRIPTION:NASA craft surpasses another full year in space today\, having launched Aug 12\, 2018; probe came within ~6.16M km of the Sun on Dec 24\, 2024 which is ~7 times closer than any prior spacecraft\, traveling faster than any other human-made object at ~692\,000 km/hr.
URL:https://spacecalendar.com/event/parker-solar-probe-begins-next-year-in-space-3/
LOCATION:Heliocentric Orbit
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280813
DTEND;VALUE=DATE:20280817
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000199-1849737600-1850083199@spacecalendar.com
SUMMARY:42nd Annual Small Satellite Conference
DESCRIPTION:
URL:https://spacecalendar.com/event/42nd-annual-small-satellite-conference/
LOCATION:Salt Palace Convention Center\, Salt Lake City UT\, USA\, 100 South West Temple\, Salt Lake City\, UT\, 84101\, United States
CATEGORIES:Meeting / Conference / Symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280823
DTEND;VALUE=DATE:20280824
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000191-1850601600-1850687999@spacecalendar.com
SUMMARY:Chandrayaan-3 Commemorated for Moon Landing (2023)
DESCRIPTION:Chandrayaan-3 Vikram lander and Pragyan rover celebrated today after successfully landing on Moon in 2023; marking India as the 4th country to land on Moon\, and 1st near the Moon South Pole.
URL:https://spacecalendar.com/event/chandrayaan-3-commemorated-for-moon-landing-2023-4/
LOCATION:Statio Shiv Shakti\, 69.373°S 32.319°E\, Moon Surface
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280830
DTEND;VALUE=DATE:20280831
DTSTAMP:20260613T062258
CREATED:20251024T200719Z
LAST-MODIFIED:20251024T200719Z
UID:10000189-1851206400-1851292799@spacecalendar.com
SUMMARY:Van Allen Probes Mark Another Year in Space
DESCRIPTION:NASA spacecraft surpasses another full year in space today\, launched 2012; adding to the understanding of Earth radiation belt environment and its variability.
URL:https://spacecalendar.com/event/van-allen-probes-mark-another-year-in-space-3/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280901
DTEND;VALUE=DATE:20280902
DTSTAMP:20260613T062258
CREATED:20260303T021409Z
LAST-MODIFIED:20260320T003748Z
UID:10001060-1851379200-1851465599@spacecalendar.com
SUMMARY:NET Late 2028 - Launch Orion for Artemis 5
DESCRIPTION:NASA Artemis 5th flight (4th crewed mission) lasting 30 days\, planned to send 4 Astronauts to the Lunar Gateway to install the I-Hab module\, and conduct a second crewed lunar landing. NASA announcement week of March 11\, 2026\, said United Launch Alliance (ULA) Centaur V upper stage will be used for this mission and for Artemis IV. \nULA is a joint venture of Lockheed Martin and Boeing.
URL:https://spacecalendar.com/event/net-late-2028-launch-orion-for-artemis-5/
CATEGORIES:Launch
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280901
DTEND;VALUE=DATE:20280906
DTSTAMP:20260613T062258
CREATED:20251024T200718Z
LAST-MODIFIED:20251024T200718Z
UID:10000395-1851379200-1851811199@spacecalendar.com
SUMMARY:NET Sep -- 79th International Astronautical Congress (IAC 2028)
DESCRIPTION:
URL:https://spacecalendar.com/event/79th-international-astronautical-congress-iac-2028/
LOCATION:Samarkand\, Uzbekistan
CATEGORIES:Meeting / Conference / Symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280906
DTEND;VALUE=DATE:20280907
DTSTAMP:20260613T062258
CREATED:20251024T200718Z
LAST-MODIFIED:20251024T200718Z
UID:10000394-1851811200-1851897599@spacecalendar.com
SUMMARY:X-Ray Imaging and Spectroscopy Mission (XRISM) Begins Next Year in Space
DESCRIPTION:Japan’s X-Ray Imaging and Spectroscopy Mission (XRISM)\, studying galactic plasma\, surpasses another full year in space today at ~550-km LEO\, having launched 2023.
URL:https://spacecalendar.com/event/x-ray-imaging-and-spectroscopy-mission-xrism-begins-next-year-in-space-3/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280921
DTEND;VALUE=DATE:20280922
DTSTAMP:20260613T062258
CREATED:20251024T200718Z
LAST-MODIFIED:20251024T200718Z
UID:10000391-1853107200-1853193599@spacecalendar.com
SUMMARY:Mars Atmosphere and Volatile EvolutioN (MAVEN) Begins Next Year in Mars Orbit
DESCRIPTION:NASA Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft surpasses another full year of operations in Mars orbit after insertion on this day 2014; continuing to study upper atmosphere.
URL:https://spacecalendar.com/event/mars-atmosphere-and-volatile-evolution-maven-begins-next-year-in-mars-orbit-3/
LOCATION:Mars Orbit
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280926
DTEND;VALUE=DATE:20280927
DTSTAMP:20260613T062258
CREATED:20251024T200718Z
LAST-MODIFIED:20251024T200718Z
UID:10000390-1853539200-1853625599@spacecalendar.com
SUMMARY:Double Asteroid Redirection Test (DART) Anniversary Observation
DESCRIPTION:Observed today is 1st planetary defense / asteroid deflection test success: NASA DART crashed into minor-planet moon Dimorphos of asteroid Didymos on this day in 2022\, shortening Dimorphos’ orbital period.
URL:https://spacecalendar.com/event/double-asteroid-redirection-test-dart-anniversary-observation-4/
LOCATION:Worldwide
CATEGORIES:Observation / Anniversary
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20280928
DTEND;VALUE=DATE:20280929
DTSTAMP:20260613T062258
CREATED:20251024T200718Z
LAST-MODIFIED:20251024T200718Z
UID:10000389-1853712000-1853798399@spacecalendar.com
SUMMARY:Astrosat Begins Next Year in Space
DESCRIPTION:Indian Space Research Organisation (ISRO) first dedicated multi-wavelength space observatory surpasses another full year in space today\, launched 2015.
URL:https://spacecalendar.com/event/astrosat-begins-next-year-in-space-3/
LOCATION:Low Earth Orbit (LEO)
CATEGORIES:Observation / Anniversary
END:VEVENT
END:VCALENDAR