When astronomers announced Kepler-452b, they were not just adding another distant world to a growing catalog. They were ...

"A strong magnetic field is very important for life on a planet," study lead Miki Nakajima, an associate professor in the ...

With satellites and space junk increasingly cluttering our planet’s low Earth orbit, a team of scientists warn that this ...

The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

Earth's radiation budget is a core process of the Earth-atmosphere system, closely linked to global climate and environmental ...

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 danger to the planet.

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 ...

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 extent to which Mars is quietly tugging on Earth's orbit and shaping the ...