Tianwen 1 has spotted the solar system's latest interstellar intruder from Mars orbit. China's Tianwen 1 Mars orbiter has ...

On Oct. 3, the comet came within about 18 million miles of the Red Planet. Both China's Tianwen-1 Mars Orbiter and NASA's ...

We've been so engrossed in coverage of 3I/ATLAS that we nearly failed to note another comet currently in Earth's skies. This ...

Having made its closest approach to the sun on Wednesday October 29, comet 3I/ATLAS will soon be visible from Earth ...

Is 3I/Atlas an alien spacecraft or just a really interesting rock hurling through the cosmos? That debate has been raging ...

Comet 3I/ATLAS, which made a close approach to the sun, has prompted lots of public interest. Kim Kardashian asked NASA's ...

The new report comes as many world leaders prepare for the U.N.'s COP30 climate summit in Brazil next week — for reference ...

Comet 3I/ATLAS, a 7-billion-year-old visitor from another star system, is stirring alien rumors. Scientists explain why the ...

Amid growing mystery surrounding 3I/ATLAS, Republican congresswoman Anna Paulina Luna is calling on NASA to share unreleased ...

Usually, sunlight makes cometary gases glow green from diatomic carbon (C2) or blue from ionized carbon monoxide (CO+). With ...