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

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

Astronomers have discovered a brand new type of planet outside our solar system that, even in its infancy, is already bigger ...

Google Maps in Space lets you "walk" the surface of the Moon, Mars, Venus, and other entities in the Solar System, as well as the International Space Station. Here's how to use it.

Using a cutting-edge adaptive optics system developed at the University of Arizona's Steward Observatory, a growing planet ...

When scaled accurately, the distances in our solar system are so vast that planets appear incredibly far apart. Voyager 1, ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

The Psyche spacecraft is on a six-year journey to reach a metal-rich asteroid by the same name. Well into its voyage, the ...

Astronomy often focuses on objects that are vast distances from Earth – stars that are light-years away, galaxies that are ...

NASA has a planetary defense project that identified possible threats in near our solar system that could cause another mass ...

There may be a habitable world at the Sun's closest solar twin. In the complex space inhabited by the Alpha Centauri triple ...