How Earth ultimately became rich in liquid water has remained a source of debate for scientists. However, NASA’s latest ...

Jupiter reaches opposition; meanwhile, the star Canopus shines bright and the constellation Pictor offers many gems to view.

Researchers have found that water on Comet 67P/Churyumov–Gerasimenko has a similar molecular signature to the water in ...

An unusual planetary system with three known ultra-low density "super-puff" planets has at least one more planet, according ...