The flares may heat up and inflate the planet's atmosphere, which is dominated by hydrogen and helium. Being lashed by these ...

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer.

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

The exoplanet, a planet beyond our solar system, has been dubbed TWA 7b after NASA's James Webb Space Telescope captured ...

Astronomers using NASA’s James Webb Space Telescope have captured compelling evidence of a planet with a mass similar to ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...