This hypothesis is in excellent agreement with observations made by the Cosmic Origin Spectrograph on board the Hubble Space Telescope.

Dark matter could be made up of ultralight dark photons that heated up our universe: this is a new scenario proposed in a recent study.

Astronomers have identified a rapidly growing black hole in the early universe that is considered a crucial "missing link".

Brown dwarfs aren't quite stars and aren't quite planets, and a new study suggests there might be more lurking in our galaxy than known.

Gravity is the weird, mysterious glue that binds the Universe together, but that's not the limit of its charms.