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 ...

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 ...

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

Astronomers have followed 3I/ATLAS since its discovery on July 1. Hubble photographed it on July 21 from 277 million miles away, revealing a teardrop-shaped cloud of dust wrapped around its icy core.

Even worse, the orbit of Mars is elliptical (think of a slight oval rather than a perfect circle), which means that sometimes ...

Electrification, EVs, data centers and AI mean the planet needs to dramatically increase its power generation, transmission ...

Lower electricity bills could help two Cokeville cattlemen compete and pass their businesses on to their kids, they say, but lawmakers won’t let ranch-scale solar projects feed power to the grid.