Harvard’s UFO-hunting astronomer Avi Loeb says interstellar object 3I/ATLAS still has strange, unresolved clues - from its near-perfect planetary-plane path to odd jets ...

An interstellar object named 3I/ATLAS, confirmed to be a comet, is passing through Earth's solar system. The comet poses no threat to Earth and will make its closest approach to our planet on Dec. 19.

Investor excitement around the SpaceX IPO is colliding with peak Elon Musk futurism after a new social media post featuring his musings about light-speed travel and exploring alien worlds. In a social ...