New evidence shows that, far beyond Pluto, there may exist a hypothetical planet referred to as Planet X or Planet Nine.

Astronomers are uncovering distant worlds beyond our solar system using ingenious indirect methods like observing stellar ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

TRAPPIST-1e, an Earth-sized world in the system’s habitable zone, is drawing scientific attention as researchers hunt for ...

Earth has the perfect combination of a livable atmosphere and a protective magnetic field that prevents the Sun's harmful radiation and radioactive solar winds from damaging us, allowing us to live on ...

Astronomers have created a groundbreaking discovery of images showing debris disks in an extensive range of exoplanetary ...

Democratic state Sen. Liz Krueger and Assemblymember Emily Gallagher launched an effort Friday for their balcony solar bill, ...

Space-based computing offers easy access to solar power but presents its own environmental challenges To hear Silicon Valley ...

A stray comet from another star is swinging past Earth. Discovered over the summer, the comet known as 3I/Atlas will pass ...

Normally," rings around a planet are created from the remnants of meteors, moons or left over planet pieces. But this is not ...

While last week's stunning auroras delighted many people across Australia, a massive solar storm that hit last year squeezed Earth's protective shield to a fifth of its size, according to new ...

Explore 10 amazing solar eclipse facts, revealing cosmic science, history, cultural beliefs, and rare astronomical wonders.