Learn about Mars' defunct magnetic field, which may have sustained life on the planet and covered only its southern ...

Remnants of a liquid layer of magma near Earth's core, formed in the first few hundred million years of the planet's history, ...

All that said, the findings can’t confirm the terrestrial life theory beyond a doubt. There’s still a chance hydrogen-heavy ...

A Southwest Research Institute-led study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, ...

(CN) — New research suggests that as Pluto formed billions of years ago, a series of natural materials impacting on the planetary surface may have created liquid oceans beneath the dwarf planet’s icy ...

Astronomers found water vapour equal to 3 Earth oceans in HL Tauri’s disk—offering rare insight into planet birth, cosmic ...

A new 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, hot atmosphere. TOI-270 d is ...

Hycean worlds are a class of mini-Neptunes that are believed to host global oceans of liquid water on their ... Better yet, when these planets are viewed in infrared, those methyl halides would ...

They were proposed as a possibility to explain certain properties of some warm sub-Neptune-type planets that have average densities that imply a thick hydrogen atmosphere and a deep ocean of liquid ...

Nearly three fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese researchers have made a compelling case that Earth's oceans were once green ...