NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

All eyes are on Comet 3I/Atlas as astronomers worldwide chase the exotic ice ball through our solar system ...

You can watch comet 3I/ATLAS live online tonight (July 3), thanks to the Virtual Telescope Project, which will livestream ...

An object from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

An object thought to have come from another star has been seen entering the solar system at high speed, and is expected to ...

A meteor shower, a planet sighting, and a full moon. Here's how to see all of space's eye-catching activity in July.

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

Our cosmic home, the solar system, contains incredible planets and magnificent celestial objects, all held together with the ...