astronomy.com

nWyGo TIL that, due to precession, the dates of Zodiac's signs should be shifted to a month back with respect to when they where defined around 2000 years ago
l70jV TIL I learned of a gamma ray burst that struck earth with such intensity it had the same effects as a powerful solar flair. The source of the burst was over two billion light years away.
16ldd TIL that in 4 billion years, when the Milky Way galaxy collides with the Andromeda Galaxy, the distance between the stars will be so vast that none of the 1.3 trillion stars are expected to collide.