Learn what makes Comet 3I/Atlas, the third interstellar object ever observed entering into our solar system, so significant ...

To reach Earth’s closest star system, Alpha Centauri, scientists are building a laser-powered spacecraft. To pull off ...

The MeerKAT radio telescope detected hydroxyl radicals from interstellar object 3I/ATLAS, suggesting it's shedding a ton of ...

A newly discovered comet named C/2025 V1, which some have compared to 3I/ATLAS, is due to make its closest approach to Earth on Tuesday, Nov. 11.

Scientists say 3I/Atlas came closest to Mars in October. Its path this month put it in the path of the warm rays of our sun, ...

A stunning new image of interstellar comet 3I/ATLAS (C/2025 N1 ATLAS) reveals the cosmic visitor's ion tail has grown ...

Voyager 1 and 2 are voyaging into interstellar space, destined to drift for tens of thousands of years past stars, planets, ...

This engine won't be fueling interstellar missions, but still finds an unexpected way to use deep space energy to generate ...