Hey neighbor, it s World Space Week! Oct 4, 2021

Hey neighbor, it s World Space Week!

Space is a big, lonely place, so it"s nice to know we have neighbors. The pictured Andromeda galaxy is our Milky Way"s closest neighbor—right next door at 2.5 million light-years away. Our cordial relationship with Andromeda goes back about 10 billion years to when both galaxies were still forming. But trouble is brewing: Andromeda is on a collision course with the Milky Way, due for impact in 4 billion years. This neighborhood"s about to get rough…

© NASA/JPL-Caltech

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Today in History

Oct 4, 2018From Sputnik to extraterrestrial storms
Oct 4, 2019World Space Week begins
Oct 4, 2020Infrared Jupiter, erupting Io
Oct 4, 2022World Space Week
Oct 4, 2023World Space Week
Oct 4, 2024World Space Week begins
Oct 4, 2025World Space Week

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