From its scorching temperatures to its oddball rotation, there's a lot to learn about the second planet from the sun.

The near-Earth asteroid Bennu contains stardust that is older than the solar system and clues about its violent history, ...

Scientists have devised a new method for mapping the spottiness of distant stars by using observations from NASA missions of ...

Astronomers at UC Santa Cruz have developed a new model to better understand “steam worlds,” or water-rich sub-Neptunes—some ...

The newfound satellite, only about six miles wide, becomes Uranus’ 29th known moon and orbits near the planet’s inner rings.

In June, scientists spotted an odd object hurtling toward our solar system. 3I/ATLAS is likely the size of Manhattan. Unlike ...

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

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos ...

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 ...

The OSIRIS-REx mission, which delivered over 120 grams (4.2 ounces) of Bennu ’s soil to Earth in 2023, is the largest haul of ...