Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh of relief. Echoing what NASA officials have long said, a team of ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature of the universe.

A recent study has renewed discussion about whether advanced extraterrestrial civilisations could leave detectable ...

Add Yahoo as a preferred source to see more of our stories on Google. In July 2025, astronomers spotted a mysterious object screaming through the solar system from interstellar space. While the ...

An interstellar comet known as 3I/ATLAS, which swept past the Sun in 2024, could be a 12‑billion‑year‑old relic from deep space and has even been described by a Harvard physicist as a possible alien ...