The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came ...

It’s especially puzzling since Venus is a terrestrial world much like Earth, so much so that it’s considered to be our planet ...

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

Mercury is tiny, barely bigger than the Moon. Its metallic core makes up 70% of the planet’s mass, vastly exceeding Earth’s ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

The James Webb Telescope has revealed fierce auroras, storms, and unchanging sand-like clouds on the rogue planet SIMP-0136.

Dark comets are a unique type of cosmic object. While they may look like asteroids, they are actually comets with unusual ...

Strange glass strewn across southern Australia appears to be from a mystery asteroid impact 11 million years ago.

It has been suggested that lava tubes - underground tunnels carved out by molten rock - might be on Venus, and now we have ...

Something strange is stirring in Saturn’s skies. Astronomers using the James Webb Space Telescope have spotted something entirely new in Saturn’s atmosphere: a string of dark, bead-like features high ...

Lava planets, which have one face perpetually turned toward their star and heated to temperatures capable of melting rock, offer a unique natural laboratory for exploring the interactions ...

This number is monitored by NASA's Exoplanet Science Institute (NExScI) located at the California Institute of Technology's IPAC. Currently, there are over 8,000 candidate planets awaiting ...