A mystery object is dimming a distant star. Could it be a massive exoplanet, or a ‘failed star’?

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?

If the Winter Olympics went interplanetary, where else could you ski in the solar system?

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

Scientists have found a weird ‘inside out’ planetary system. Here’s what it looks like

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

Astronomers witness vanishing star collapse into a black hole in Andromeda galaxy

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

Could the Milky Way galaxy’s supermassive black hole actually be a clump of dark matter?

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*.

Can a nonprofit help protect Earth from dangerous asteroids? How the B612 Foundation has taken on the challenge

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.

China aces test of next-gen lunar capsule and rocket in effort to land humans on moon before NASA (video)

China just took another step toward landing astronauts on the moon, acing a key abort test with its Mengzhou crew capsule and pulling off a soft splashdown with the returning rocket.

Hubble Space Telescope captures the stunning final breaths of a dying star

At the center of the Egg Nebula is its yolk: a deteriorating sun-like star.

Asteroid samples NASA brought to Earth suggest life’s building blocks may be widespread in the universe

The discovery is just the latest to come from the asteroid sample, which dates back to the dawn of the solar system.