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

It looks like a sapphire jewel in space, but HD 189733bis anything but serene. With winds reaching seven times the speed of ...

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

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 ...

Planet Earth is spinning a little faster today — resulting in one of the shortest days of the year. But the change will be so minuscule you won’t even notice. We’re talking even less time than the ...

HD 189733 b orbits so close to its star that distance almost stops mattering. The planet was logged in 2005, one of many ...

Researchers uncover how Mars affects Earth’s orbit, offering new insight into the planetary forces behind ice ages.

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 ...

Crystals hidden in Australia’s oldest rocks have revealed new clues about how Earth and the Moon formed. The study suggests ...