Scientists analysing dark energy say the universe’s expansion may be slowing, raising the possibility gravity could eventually reverse everything, pulling galaxies together in a dramatic Big Crunch ...

Mysterious blasts of radio waves from across the universe called fast radio bursts help astronomers catalog matter. ESO/M. Kornmesser, CC BY-SA If you look across space with a telescope, you’ll see ...

A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.

A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this ...

Across the Milky Way, planets slightly larger than Earth but smaller than Neptune appear around most stars. Yet our own solar ...

Depending on how you look at it, the universe might not have an "end," after all. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.