Comet 3I/ATLAS, a rare interstellar visitor, is visible this week as it departs the solar system, with some public events ...

The mysterious space rock suggested to be a hostile alien spaceship was due to make its closest approach to Earth today (Dec ...

Incredible but true! A Harvard astrophysicist puts forward a startling hypothesis: comet 3I/ATLAS could be an alien ...

ATLAS made its long-awaited nearest approach to Earth on Friday but just hurtled past, showing that the aliens who "sent" it ...

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

Scientists in Boulder are using existing NASA spacecraft to track a rare interstellar comet called 31/ATLAS as it travels ...

Did an alien spacecraft just fly by Earth? That’s the question a lot of people, including Harvard astrophysicist Avi Loeb, are asking right now. A massive interstellar object called ...

Hawaii’s Gemini North telescope has captured new images of interstellar comet 3I/ATLAS with a green glow as it remerges from ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...

It flew too close to the Sun. Manhattan-sized comet 3I/ATLAS allegedly executed an unusual maneuver while approaching the Sun earlier this week, fueling theories that it could be an extraterrestrial ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...