The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

A mile-wide asteroid known as 2005 UK1 will safely pass Earth on Jan. 12, 2026, at 32 times the moon’s distance, posing no ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

In addition to shaping the interior of rocky planets, molten rock located deep within these planets may also contribute to ...

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...