In 2022, a NASA spacecraft intentionally barreled into the tiny asteroid Dimorphos during a planetary defense test. New observations show how it went.

Learn how ALMA observations revealed unusually high levels of methanol in interstellar comet 3I/ATLAS and what the molecule’s chemistry may reveal about how icy bodies form around other stars.

NASA's DART mission launched from California changed not just the orbit of Dimorphos, the asteroid it hit, but the larger Didymos' path around the sun.

The researchers who scan the skies for radio signals from extraterrestrials are now rethinking their approach.

If the Sun were very different, we wouldn’t be here. A shorter-lived star wouldn't provide the opportunity for humanity to ...

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

Mars missions, Dr. Lulu Zhao shows how solar particles threaten our tech, and how AI is learning to forecast them.

Astronomers produced the most complete map of the center of the Milky Way, which can provide insight into how stars and ...

Venus and Saturn are due for a visually striking event known as a planetary conjunction this weekend in time with daylight saving.

Venus and Saturn will appear close together in the night sky Sunday, March 8. Here's how to see the conjunction from around Florida.

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from the a European Space Agency orbiter on its ...