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

This interstellar vagabond is only the third large interstellar visitor that we have ever discovered — an asteroid or comet ...

Decades ago, a spacecraft suggested Saturn's largest moon, Titan, had an ocean. New observations suggest that the liquid may ...

The interstellar comet 3I/ATLAS will make its closest approach to Earth on Friday, December 19, as it continues to hurtle ...

CAPE CANAVERAL, Fla. (AP) — Saturn’s giant moon Titan may not have a vast underground ocean after all. Titan instead may hold ...

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 ...

The European Space Agency has released new images of a rare "butterfly" crater on the Red Planet. The bug-like structure ...

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. Here's what we know.

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth this week, safely passing at 167m miles. The UN & NASA are ...

On December 19, this interstellar visitor with its peculiar composition offers a glimpse into the makeup of celestial bodies ...

The universe is full of wonders, and one of the most intriguing is the arrival of interstellar comets. Comet 3I/ATLAS, recently observed by NASA’s Hubble Space Telescope, stands as the third ...