Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

Interstellar comet 3I/ATLAS has once again baffled scientists and astronomers with its increasing brightness and striking ...

A stray comet from another star is swinging past Earth. Discovered over the summer, the comet known as 3I/Atlas will pass ...

A stray comet will make its closest approach to Earth this week in one last hurrah before racing back toward interstellar ...

The scientist said that the rotational-gradient brightness map shows a prominent anti-tail pointing in the direction of the ...

3I/ATLAS will soon be approaching Earth at its nearest to the only known planet with life teeming. On its closest flyby on ...

Interstellar comet 3I/ATLAS makes its closest Earth approach on Dec. 19, offering astronomers a rare chance to study a visitor from beyond the solar system ...

Interstellar object 3I/ATLAS nears Earth, showing a rare anti-tail, changing brightness, and new clues about its origin, with ...

Comet 3I/ATLAS is now moving out of the Solar System, but its closest passage to Earth is still a few days away. On December ...

The interstellar comet 3I/ATLAS is currently visible in the constellation Leo, though its faint brightness of magnitude 12.5 means it is difficult to spot.

United Launch Alliance (ULA) will send another batch of Amazon's Monday morning (Dec. 15), and you can watch the action live — if you're a night owl or a very early riser. A ULA Atlas V rocket ...