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.
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1 event,Indian Space Research Organisation (ISRO) first dedicated multi-wavelength space observatory surpasses another full year in space today, launched 2015. |
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1 event,Celebrating international contributions of space science for betterment of the human condition; Oct 4 is 68th observation of 1st Space mission Sputnik One launched by Soviet Union 1957; Oct 10 is 58th observation of Outer Space Treaty going into effect 1967. |
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1 event,Detecting some of the most energetic radiation in space, ESA, NASA, Roscosmos spacecraft surpasses another year of operations in space, despite loss of its thrusters; launched 2002, instruments were officially powered down in February 2025, and planned reentry into Earth's atmosphere expected Feb 2029. |
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2 events,NASA spacecraft mapping boundary between the Solar System and interstellar space surpasses another full year in space; launched on this day 2008. European Space Agency (ESA) and Roscosmos spacecraft surpasses another full year at Mars, launched 2016; craft continues collecting data on atmosphere, deployed Schiaparelli demonstration lander 19 Oct 2016 (unsuccessful). |
1 event,European 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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1 event,NASA 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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1 event,NASA craft imaging Sun and solar phenomena surpasses another full year in space today; launched 2006. |
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1 event,Today marks another full year of continuous Human occupation of ISS; first component Zarya launched Nov 20, 1998, occupation began Nov 2, 2000. |
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