Eleven times wider than Earth. Over 300 times more massive. And a million times more terrifying. Jupiter may look like a ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

Our solar system, a cosmic ballet of planets held together by gravity and inertia, is uniquely structured compared to many other systems we observe in the universe. A notable difference is the ...

The James Webb Space Telescope has uncovered something about the interstellar comet that's never been observed before, ...

NASA is tracking a mysterious, fast-moving object entering our solar system, raising questions about whether it's just a ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

Called 3I/ATLAS, the comet is only the third of its kind known to astronomers, and it’s likely been heading our way for billions of years, carrying pristine material from another star system ...

Smithsonian researchers analyzed fragments of the near-Earth asteroid and discovered water-rich clays that hint at a distant ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS.

The star is surrounded by a protoplanetary disk, and this disk is the first evidence of debris condensing into what will eventually become planets and other objects. Observing this early phase of ...

Bennu's parent body is part of the Polana family of asteroids. A history of collisions created Bennu, and its original parent ...

NASA’s OSIRIS-REx samples from asteroid Bennu reveal stardust, water-driven chemistry, and clues to life’s origins in the ...