I/ATLAS may be more than the strangest space object astronomers have observed within our solar system—it could also be one of the oldest.

Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the planet, the harder it is to explain ...

A comet born around another star is carrying methane, and the chemical details of that methane are unlike anything ...

Add Yahoo as a preferred source to see more of our stories on Google. Two more of NASA's space telescopes recently got another look at comet 3I/ATLAS, a captivating interstellar interloper that first ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity outside the solar system," according to a University of Cambridge study. Credi ...

The James Webb Space Telescope and the Chandra X-ray Observatory have captured the clearest image yet of a galaxy cluster in the making, seen when the universe was only one billion years old. A team ...

NASA has released its first image of a planet outside of our solar system. Astronomers used NASA's James Webb Space Telescope to take a direct image of the exoplanet, described as a "gas giant." NASA ...

This process could help explain how the comets found at the outskirts of our own solar system formed. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow ...