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 ...

NASA's Mars Reconnaissance Orbiter recently photographed Candor Chasma in Mars' Valles Marineris, the largest canyon in the ...

Aliens may have been closer to Earth than first thought. New research from NASA reveals that Ceres, the dwarf planet in the ...

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

Since its fiery birth nearly 4.5 billion years ago, Mercury, the smallest planet in our solar system, has been slowly ...

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

Learn how rock and dust samples are shedding light on the origins of Asteroid Bennu and the history of the early Solar System ...

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 ...