A collision with this rock would release the same kind of energy that a certain other asteroid did 66 million years ago, ending the reign of the dinosaurs and killing nearly everything on Earth. This ...

While scientists are confident it is a comet, its origins have ignited wild theories, including the persistent idea that it could be an alien spacecraft. As it approaches its perihelion—its closest ...

NASA will livestream new 3I/ATLAS images today, Wednesday, Nov. 19, 2025, amid increased public interest in the mystery of the interstellar object after Harvard University astrophysicist Avi Loeb ...

Earth is set to host a rare visitor, interstellar comet 3I/ATLAS, on October 29, 2025. Discovered in July 2025, this celestial object, originating from beyond our solar system, will pass by at a safe ...

The interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19. Originating from outside our solar system, the comet is not a threat to Earth. While not visible to the naked eye, ...

A computer-generated mock-up showing the projected trajectory of interstellar comet 3I/ATLAS through the Solar System. While scientists are confident it is a comet, its origins have ignited wild ...