22 Years in Space: Interstellar Boundary Explorer (IBEX)
NASA spacecraft mapping boundary between the Solar System and interstellar space surpasses another full year in space; launched on this day 2008.
6 events found.
Observation / Anniversary
Events
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High Earth Orbit (HEO)
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12 Years in Space: BepiColombo (Mercury Planetary Orbiter and Mercury Magnetospheric Orbiter)
Mercury TrajectoryEuropean Space Agency / JAXA Mercury Planetary Orbiter (MPO) and Mercury Magnetospheric Orbiter (dubbed Mio ‘waterway or fairway’) surpasses another full year in space today, launched 2018; expected to reach Mercury polar orbit in Nov 2026 to map planet, investigate magnetosphere.
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29 Years in Mars Orbit: Mars Odyssey
Mars OrbitNASA spacecraft surpasses another full year in orbit around Mars today, holds record for longest-surviving continually active spacecraft in orbit around a planet other than Earth; launched 2001.
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24 Years in Space: Solar Terrestrial Relations Observatory (STEREO A & B)
Heliocentric OrbitNASA craft imaging Sun and solar phenomena surpasses another full year in space today; launched 2006.
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13 Years in Space: Parker Solar Probe
Heliocentric OrbitNASA 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.
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Tiangong Space Station: 9 Years of Continuous Human Occupation
Low Earth Orbit (LEO)Today marks 10th full year / starts 11th year of continuous Human occupation of Tiangong Space Station; Shenzhou 14 three-member crew launched on this day in 2022, beginning occupation.