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 ...

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

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

In September 2023, NASA's Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer ...

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

Last month, astronomers made an exciting discovery, observing an interstellar object — only the third of its kind ever ...

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

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 ...