Mars’ positioning is what gives the lighter planet such a strong pull. “The closer it is to the sun, the more a planet ...

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

New research suggests that the Earth's solid inner core is softer and more dynamic than previously thought, changing ideas.

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

From a distance, it looks like a serene blue twin of our own world, a dot that could almost pass for Earth in a telescope ...

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 ...

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 ...

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

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 ...

A new study reveals that tiny fragments of Earth's atmosphere are transported to and absorbed by the moon via gusts of solar ...

P arts of the ocean reached temperatures of -15°C (5°F) without freezing 717-660 million years ago, geologists and ...