A distant 'exomoon' the size of Jupiter is changing how we think about the cosmos.

Are we alone in the universe? For scientists working on NASA's proposed Habitable Worlds Observatory, that question is no ...

The moon has been bathed in solar wind for billions of years, but the two hemispheres are struck by solar wind of different ...

Astronomers have discovered a rare planetary system 71 light-years away, where a Jupiter-sized world orbits a brown dwarf, ...

A shattered asteroid may have unleashed a long-lasting cosmic barrage that left scars across the inner solar system and ...

Researchers probe the geochemistry of the moon, Mars, asteroids, and water worlds to understand our home and plan for future ...

In a major milestone in the search for life on other planets, astronomers have detected, for the first time, an atmosphere ...

The curious minds at What If explore what would happen if Earth was the center of the solar system.

On August 12, 2026, lucky viewers in and around Greenland, Iceland and Spain—weather allowing—will be able to see one of ...

A violent collision in the main asteroid belt may have sent debris raining across the inner solar system about 800 million ...

Stretching from Topsfield in Washington County to the St. John Valley along U.S. Route 1, it is the largest complete, designed-to-scale solar system model in the world.

By Will Dunham WASHINGTON, July 22 (Reuters) - Scientists are documenting a planetary system in the Milky Way galaxy that is ...