He cited the astronomical gaffe in January, when The Minor Planet Center in Cambridge, Mass., announced the discovery of an ...

In a dramatic U-turn, Harvard astrophysicist Professor Avi Loeb has now admitted it is “most likely natural”, with experts ...

A Harvard astronomer is making waves by suggesting that a massive interstellar object hurtling through our solar system might be an alien spacecraft. Professor Avi Loeb, who also serves as director of ...

The vast silence of the cosmos was momentarily interrupted on Friday as a mysterious celestial traveller reached its closest ...