Professor Avi Loeb said there are clear signs that the comet known as "3I/ATLAS" could be an alien craft. "We should put all ...

Its path through space will take it between the orbits of Earth and Mars before it heads back out toward interstellar space ...

A mysterious object named 3I/ATLAS is speeding through our solar system — and some scientists think it could be more than just a comet. Could it be alien spyware? Researchers including Avi Loeb ...

"The consequences, should the hypothesis turn out to be correct, could potentially be dire for humanity," said Avi Loeb.

A comet is visiting Earth for the first time in 80,000 years, and you can see it this fall. Comet C/2023 A3, also known as Tsuchinshan-ATLAS, was first discovered in 2023.

A comet is visiting Earth for the first time in 80,000 years, and you can see it this fall. Comet C/2023 A3, also known as Tsuchinshan-ATLAS, was first discovered in 2023.

Astronomers think small space rocks from beyond our solar system routinely strike Earth—but proving it isn’t easy ...

Comet C/2024 G3 (ATLAS) did it! It survived its perilous perihelion, getting ten times closer to the Sun than Earth does. This comet is a sungrazer comet, and the encounter made it bright – so ...

A team of researchers has presented the wild theory that an interstellar object might be hostile "alien technology" that ...

Miguel Claro took one last look at the comet as it bid farewell to Earth for the next 80,000 years.