Our solar system was formed about four and a half billion years ago, from a massive cloud of gas and dust which collapsed on ...

A group of comets with unexplained movements presents a quandary D avide Farnocchia hunts down and tracks asteroids, and several years ago he saw something he couldn’t explain. Farnocchia works at ...

A Southwest Research Institute-led study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, ...

Scientists have discovered where Earth's water comes from, and say that it wasn't brought to the planet by asteroid impacts ...

The new sub-neptune planet has been designated as GI 410 b. It weighs as much as the mass of 8.5 Earths. Making it one of the larger sub-Neptunes to be discovered. Following the detection, it was ...