Life as we know it needs liquid water. For liquid water to exist on a given planet, it has to lie in a specific region called ...

In high enough doses, hydrogen cyanide can kill an adult human in minutes, but the chemical may be the reason why we’re here ...

The complex building blocks of life can form spontaneously in space, a new lab experiment shows.

An ancient and enormous organism called Prototaxites, initially found to be a type of fungus, may actually be an unknown ...

The origin of life on Earth is one of science’s biggest questions, and previous theories have suggested that lightning may have played a role. While previous studies say volcanic or atmospheric ...

How nutrients from Europa's icy shell reach its ocean has been unclear despite several theories.

Prototaxites are something of a prehistoric mystery. They were the first giant organisms on land, towering over ancient ...

By the late 1990s, scientists realized that virus activity was likely shaping how carbon and nutrients cycled through ocean ...

NEW YORK (AP) — A microscopic discovery in a California lake sparked buzz and controversy more than a decade ago when it was first revealed. Scientists said they'd discovered bacteria that used the ...

"Although this doesn't rule out the possibility that Enceladus' ocean may be habitable, it does mean we need to be cautious in making that assumption just because of the composition of the plumes." ...

This week in science: Scientists propose new standard measures for cannabis use; mysterious ancient lifeforms don't ...

"Each additional 'year' of brain age is associated with meaningful differences in later-life health," a senior author of the ...