A NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to ...

Scientists recently detected something unusual entering our Solar System, sparking discussions about whether it is a comet or ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new ...

Humanity has already sent five spacecraft on trajectories that will eventually carry them beyond the Solar System, ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

Scientists have searched one of the only known visitors to us from another solar system for signs of alien technology – and ...

Our search for technosignatures—clear signs of advanced civilizations beyond Earth—takes many forms. Many are driven by the famous Drake equation, which attempts to estimate how many technological ...

Using the Keck Observatory, astronomers measured the spins of dozens of giant planets and brown dwarfs orbiting distant stars ...

The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

Every second, hypervelocity collisions may be blasting tiny flecks of Earth into space. Some of those grains, small enough to ...

US firm Vast is developing spinning space stations with artificial gravity to keep astronauts healthy on deep-space missions ...

When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took ...