Beginning Monday afternoon, comet Lemmon will pass about 56 million miles from Earth, while comet Swan will soar even closer, ...

Astronomer Gianluca Masi and his Virtual Telescope Project will host a special livestream on Oct. 24 beginning at 1:30 p.m.

If such ‘twilight’ asteroids approach Earth, "they could pose serious impact hazards," warned the astronomer behind the ...

New telescope images show that the interstellar comet 3I/ATLAS is shooting a giant jet of gas and dust toward the sun. This ...

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

Something called a "quasi-moon" was discovered in August, and now many are wondering if we should count our new neighbor as a ...

The newly spotted asteroid, 2025 PN7, follows a rare orbit around Earth and could remain nearby for decades, scientists say.