For the first time since Pluto was demoted, the idea of a true ninth planet is edging from speculation toward something ...

CAPE CANAVERAL, Fla. — The moon and sun share top billing in 2026. Kicking off the year’s cosmic wonders is the moon, drawing ...

Xi Zhang, a professor of Earth and planetary science at UC Santa Cruz, has discovered that an exoplanet classed as a ...

Hubble reveals the largest planet-forming disk ever seen, Dracula's Chivito, showing a chaotic and uneven environment around ...

Astronomers discovered a comet originating from outside the solar system this summer. Its name is 3I/ATLAS ("three-eye-Atlas"), which means it's the third interstellar object found in the solar system ...

A surprising new theory claims Earth’s building blocks were supernova ice, not stardust. This could change everything.

NASA’s Hubble captured images of IRAS 23077+6707, the largest known protoplanetary disk, revealing its structure, asymmetry, and potential for forming multiple gas giant planets.

A new computational model suggests that Uranus' and Neptune's cores may be less icy than their "ice giant" nickname suggests.

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

There could be a ninth planet in our solar system that's lying in wait to be discovered - and no, it's not Pluto. Our solar ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

Sometimes there are storms where the wind gets really strong, it might rain, or there might be thunder and lightning. Did you ...