The M33 galaxy is a rare galaxy that's "face on" to us, so we can study its make-up. And it's also blue-shifted, meaning it's coming towards us. But it'll collide with Andromeda before it reaches us.
The most massive 3D map of the night sky has been released. It contains a trillion pixels and would require 500,000 high-definition TVs to view in its entirety. These images represent just the tiniest fraction of the full map.