New Hubble data on the 3I/ATLAS interstellar comet points to it having a nucleus between 1,000 feet and 3.5 miles, speed at 130,000 mph.

Harvard's Avi Loeb proposes that the interstellar object 3I/Atlas may be an alien reconnaissance mission. The comet's unusual trajectory and brightness have sparked this theory.

A cosmic visitor is stirring up an earthly debate. A Harvard University astrophysicist has suggested the incoming ...

Harvard scientist Avi Loeb has warned the Earth needs to be prepared incase this space object turns out to be a threat ...

A cosmic visitor is stirring up an earthly debate. A Harvard University astrophysicist has suggested the incoming ...

Hubble’s clearest view of comet 3I/ATLAS shows a dusty coma and faint tail from a rare interstellar traveller.

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

Hubble also captured a dust plume ejected from the Sun-warmed side of the comet and a hint of a dust tail streaming away from ...

Is it an alien spaceship or an ancient comet? That’s the question puzzling UFO enthusiasts, NASA, and the European Space ...

NASA’s Hubble Space Telescope has captured its most detailed image yet of interstellar comet 3I/ATLAS. The rare comet is ...

Theoretical physicist Avi Loeb says 3I/ATLAS seems to be unusually large, doesn’t appear to have a typical comet’s tail and ...

The comet is hurtling our way at 130,000 mph, but will veer closer to Mars than Earth, keeping a safe distance from both.