Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

Every planet in the solar system leans, some gently, some dramatically, and that tilt quietly shapes everything from our ...

The interstellar comet is on its way out of the solar system. Scientists studying it have observed its composition and ...

While surveying distant worlds beyond our solar system, researchers unexpectedly obtained the first direct images showing ...

In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

Astronomers at the Center for Astrophysics | Harvard & Smithsonian have captured what may be the biggest planet-forming disk ...

Roughly 1,000 light-years away from Earth, a gigantic disk of gas and dust is swirling around a young star and giving rise to ...

JWST observations of the ultra-hot super-Earth exoplanet TOI-561 b provide the strongest evidence to date for an atmosphere surrounding a rocky planet beyond our Solar System.

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...

The long-anticipated BepiColombo mission is entering its decisive phase. Launched in 2018, this joint endeavor between the ...

A colossal Martian volcano defies everything we know about planetary geology. Hidden clues beneath its frozen summit hint at ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.