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

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

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

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 through Earth’s solar system.

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 ...

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

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 ...

The earlier two were ‘Oumuamua, discovered in 2017, and 2I/Borisov, found in 2019. For scientists, 3I/ATLAS is important because it gives a rare chance to study material from another star system ...

Besides the original cult hit film, the sci-fi franchise Alien Nation also encompasses a TV series and several TV movies ...