The interstellar visitor Comet 3I/ATLAS passed Earth with Harvard astrophysicist Avi Loeb saying it could be an alien probe.

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 ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

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.

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

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

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

Physicist Brian Cox says he’s disappointed to see people focus on alien theories when discussing 3I/ATLAS, which he notes is older than Earth ...

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

3I/ATLAS came within 168 million miles of Earth around midnight CST Friday. While that might seem pretty far away, the ...

One of Britain’s most prominent space scientists believes humanity may finally get an answer to one of its oldest questions ...