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

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

Most planet-forming disks have warps that can lead to planets on inclined orbits, which could explain where the tilt of Earth's orbit came from.

The new image, which shows Earth along with an even smaller point of light coming from the moon, harkens back to Carl Sagan's ...

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

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

For the first time in history, NASA’s Parker Solar Probe has flown through a region of the Sun where explosive magnetic ...

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

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

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

The appeal is straightforward. Solar panels on Earth depend on weather. They shut down at night, sulk under clouds, and fade ...