Stargazers using telescopes should be able to see the object in the predawn sky beginning Nov. 11, according to EarthSky.

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an ...

Interstellar comets like 3I/ATLAS could serve as seeds for giant planet formation, potentially explaining how massive planets ...

Astronomers say 3I/Atlas will be visible in parts of the US sky for a short time, giving viewers a unique look at a comet from beyond our solar system.

The comet is on what’s known as a hyperbolic trajectory, which means that it doesn’t follow an orbital path around the sun. It’s also traveling at about 137,000 miles per hour, which is too fast for ...

When evaluating possible planets out of the thousands out there, explained Prof. Bean, scientists look for liquid water as a ...

Study discovered that Chiron, a small icy world between Saturn and Uranus, is forming rings. This shows how small worlds ...

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

Scientists use James Webb Space Telescope to make 1st 3D map of exoplanet — and it's so hot, it rips apart water ...

“If you build a map at a wavelength that water absorbs, you’ll see the water deck in the atmosphere, whereas a wavelength ...