The moon is one of the most familiar sights in the night sky, but it does not look the same from every corner of the planet.

Supermoons tend to come in packs, and Earth has just experienced three in a row, dating back to October. The final supermoon of this sequence is happening on Jan. 3, and it also happens to be the ...

Astronomers using NASA's Hubble Space Telescope have imaged the largest protoplanetary disk ever observed circling a young ...

The shape of the universe is not something we often think about. My colleagues and I have published a new study that suggests ...