NASA says it's a comet, but Harvard astrophysicist Avi Loeb believes the object known as 3I-Atlas may be something far more ...

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into ...

The latest observations suggest the comet could be as wide as 5.6 kilometres, and at least 320 metres. Further observations ...