Learn about the latest image of comet 3I/ATLAS, captured by a European Space Agency spacecraft that's on its way to Jupiter.

The third known interstellar comet to visit our solar system has just done something no one had seen before: it lit up in X-rays, surrounded by a ghostly halo roughly 400,000 kilometers across. That ...

For eight months, the comet now called 3I/ATLAS traveled unseen through deep space. In July 2025, the NASA-funded ATLAS telescope in Chile finally spotted it as it entered our solar system. This icy ...

A bold proposal would send a spacecraft plunging close to the sun to slingshot after interstellar comet 3I/ATLAS, an ...