Andromeda galaxy
© NASA/JPL-Caltec
Hey neighbour, it's World Space Week!
Space is a big, lonely place, so it's nice to know we have neighbours. The pictured Andromeda Galaxy is our Milky Way's closest--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 four billion years. This neighbourhood's about to get rough…
Sometime in the four billion years we have left (preferably this World Space Week, October 4-10), we encourage you to turn your attention to the stars, whether on a trip to the countryside, the planetarium, or your backyard. World Space Week's theme this year is 'Women in Space.’
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