A coronal mass ejection on another star has been witnessed in its entirety for the first time, revealing that when these ...

It’s often assumed that Earth is somehow separate from the rest of the universe. Yet changes in environments across the solar ...

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

Tests on olivine hint that water-rich exoplanets could generate H2O internally, possibly explaining ocean worlds and even some of Earth’s early water.

"It's very rare to discover an object both large and with an exotic orbit." A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

In the remote outer reaches of planetary systems, far beyond the orbit of known planets, enormous and mysterious worlds silently loop around their stars. Some drift as far as 10,000 times the distance ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...