Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

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

Astronomers studying the interstellar comet 3I/ATLAS say it could be a 12‑billion‑year‑old relic formed in near‑absolute‑zero ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

James Webb has revealed that the sunrise and sunset sides of WASP-121 b have surprisingly different atmospheres.

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

The winds on seven hellish alien worlds are moving in the wrong direction. That strange anomaly just cracked open one of exoplanet science's biggest mysteries.

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

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