Deep space has just delivered a cosmic curveball: an object that behaves so strangely it appears to break the rules astronomers use to describe how the universe grew up. The discovery centers on an ...

As the interstellar comet 3I/ATLAS sweeps past our planetary neighborhood, scientists say they have spotted a fresh and deeply puzzling anomaly in its behavior, adding a new twist to an object that ...

Professor Avi Loeb of Harvard cited three reasons 3I/ATLAS might be an alien spacecraft. First, its trajectory is highly ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

NASA's SPHEREx and Hubble find mysterious 3I/ATLAS behaving strangely after perihelion. The interstellar visitor's 'mini-jets' defy standard science.

Two images of 3I/ATLAS, an interstellar object. The left image shows it through multiple color filters moving quickly through a field of stars. The right image combines each photo to show the comet’s ...