Researchers have made groundbreaking observations of interstellar comet 3I/ATLAS using NASA's James Webb Space Telescope.

The discovery of 2026 ED138 does not alter the official definition of a planet or change Pluto's classification.

The study challenges a century-old theory that the celestial bodies delivered the molecular “building blocks” for life on the ...

Earth's oceans are unique in the solar system and essential for life, but experts say that our planet wasn't always so blue.

Earth may have produced much of its water during the planet's formation, as rocky pebbles reacted with the hydrogen-rich ...

In our solar system's corner of the galaxy, stars rarely collide. It makes sense: Space is vast, and stars have room to roam.

I looked up at the night sky. We usually keep our feet firmly on the ground and go about our unchanging daily lives. But did you know that if you turn your gaze toward space for just a moment, there ...

A solar eclipse recorded more than 2,700 years ago is revealing surprising secrets about Earth's rotation and the Sun's ancient behavior. By correcting an eight-kilometer error in the location of an ...

A brown dwarf orbits the star, while the newly detected object appears to circle the brown dwarf, creating an unusual ...

Astronomers have uncovered evidence of a bizarre, potentially historic discovery: the first moon ever detected beyond our ...

The universe formed 13.8 billion years ago, so this far-traveled burst of radio waves can help scientists learn more about the early cosmos. However, researchers still aren't sure what produces these ...