Astronomy

As global tensions rise, the island has become a geopolitical pressure gauge, revealing how the old international legal order is beginning to fray.

Astronomers have spotted a heart in the cosmos — not Cupid's doing, but a dying star shedding its layers — just in time for Valentine's Day.

Scientists have named two systems of colliding supermassive black holes after Lord of the Rings locations, Gondor and Rohan.

A mysterious object has caused a long-lasting and extreme dimming of a distant star, but is this object a 'failed star' brown dwarf, or an exceptionally massive super-Jupiter exoplanet?

We take a look at the best (and worst) places to ski in the solar system, logistics aside.

Astronomers have discovered a planetary system that appears to flip one of astronomy's most reliable rules on its head.

Astronomers tracked a star in Andromeda as it dimmed and vanished without the usual fiery explosion, offering rare clues to how black holes form.

New research suggests that the heart of the Milky Way may be dominated by a dense clump of dark matter rather than the supermassive black hole Sagittarius A*.

For nearly a quarter-century, the nonprofit B612 Foundation has helped scientists track dangerous asteroids and educated the public about the threats space rocks pose to Earth.