This image is made up of two images of Mare Crisium, a lunar sea northeast of Mare Ttanquillitatis.
Communication has come a long way in 60 years of 'Star Trek'—and the combadge represents one of its biggest technological evolutions.
Though they orbit the same planet, Uranus' outer rings have two very different origin stories.
Where do massive planets end and stars begin? It may come down to how they formed.
The pristine star formed outside the Milky Way and later drifted into our galaxy.
The collision likely resembles the one that formed the Moon around 4.5 billion years ago.
Without the mass stellar migration, life may not have been able to form on Earth.
The lunar sea Mare Crisium. Image: Andrea Vanoni 
