Is 3I/ATLAS a comet or an alien ship? Harvard's Avi Loeb warns of a 'serial killer' visitor as the interstellar object makes ...

There's the invasion by a warlike species, there's the highly evolved species trying to communicate with our primitive ...

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

Scientists say the colour shift in interstellar comet 3I/ATLAS is due to gases in the comet's coma reacting to solar heat.

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

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

Scientists warn humanity that the first contact with an alien civilisation may be loud, chaotic and extreme, potentially ...

At first glance, the Drake Equation looks like a hopeful scientific tool. In reality, it leads to disturbing possibilities about isolation, extinction, and survival. This breakdown explains the ...

Most scientists search for aliens by waiting for signals that may never come. Avi Loeb argues that real evidence requires looking directly at what passes through our cosmic backyard. When unusual ...

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.

For only the second time ever, a collision between two asteroids has been observed around an alien star not too far beyond ...

It came from outer space. Interstellar space, to be precise. From somewhere beyond the influence of our sun, possibly from ...