NET Apr — European Space Agency / JAXA Mercury Magnetospheric Orbiter (BepiColombo) end of extended mission, 9.98 Mercury years after orbit insertion; potential extension of mission or de-orbit plans TBD.
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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. |
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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, […] 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. |
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On this day, which happens to be a Friday, 370-meter diameter asteroid (previously known as 2004 MN4) will narrowly miss Earth by about 30,000 km, which is classified as Medium Earth Orbit (2,000 - 35,786 km). |
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OSIRIS-APophis EXplorer (OSIRIS-APEX) is planned rendezvous with and orbit asteroid Apophis starting today for 9 months following the asteroid’s close Earth approach which occurred April 13, 2029; craft previously known as Origins-Spectral Interpretation-Resource Identification-Security-Regolith Explorer (OSIRIS-REx) which returned samples from asteroid Bennu to Earth on Sep 24, 2023. |
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Commemorating the launch of China’s first satellite, Dongfanghong-1 on April 24, 1970. |
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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. |
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