The scientist has a history of making controversial claims about objects from interstellar space. He is well-known for his bold claim that the first interstellar object found, 1I/ʻOumuamua, was an ...

Avi Loeb said bases this hypothesis on a July 21 image captured by the Hubble Space Telescope and shared by NASA.

Interstellar object 3I/ATLAS shows an unexpected frontal glow that Harvard's Avi Loeb says cannot be explained by sunlight ...

Astronomers estimate it's roughly the size of the island of Manhattan. It's only the third known object from interstellar ...

The fastest interstellar object continues to be bizarre; is it rotating weirdly or is something off about its surface?

A respected Harvard astrophysicist has shared new claims about the mysterious interstellar object in our Solar System, saying there are signs it is not an ordinary comet.