AUSTIN (KXAN) — We’re just days away from the arrival of a comet from outside of our solar system. On December 19, 3I/ATLAS will make its closest approach to Earth after months of travel. This is the ...

I/ATLAS interstellar comet, first photographed from Mars orbit in October 2025, carries water ice with deuterium levels more ...

Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. For months, 3I/ATLAS has attracted plenty of attention – and ...

Interstellar comet 3I/ATLAS has been photographed with a rare, spectacular plasma halo, showcasing a full spectrum of colour beyond the usual yellow-green. A remarkable celestial event has given ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space telescopes and orbiters have been documenting the rare visit. A mysterious ...

The comet 3I/ATLAS is taking a long holiday journey this year. It's visiting from another solar system altogether. It's the third interstellar object recorded passing through our solar system.

Space agencies around the globe have launched an unprecedented wave of planetary defense exercises, all centered on a mysterious interstellar visitor that refuses to behave like anything scientists ...

Benevolent interloper or interstellar poison pill? With 3I/ATLAS set to fly by Earth in two weeks, Harvard professor Avi Loeb is debating whether our interstellar visitor is friend or foe — an answer ...