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

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

NASA believes one icy moon may offer humanity's best chance of discovering alien life. Hidden beneath a frozen shell lies a ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the star's gravity holding it back. These motes of dust are then free to roam the ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

It’s a real space oddity. Former Pentagon UFO investigator Luis Elizondo claims the US government possesses unreleased ...

K2-18b is one of the most promising worlds for the search for extraterrestrial life, so astronomers conducted an unusually ...

What starts as a single blurry photo turns into a full expedition across one of speculative biology's most carefully ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

A new study proposes examining Mars and other space samples on the Moon before bringing them to Earth, arguing it would ...