Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

Every known living thing on Earth needs water. The life-giving liquid makes up around 60 percent of each human’s body weight, regulating temperature, transporting nutrients to cells and protecting ...

Add Yahoo as a preferred source to see more of our stories on Google. Tardigrades—a type of invertebrate also known as water bears—are the only animals observed to survive the intense radiation and ...

A lot of attention has recently concentrated on the chances of finding life on Saturn’s other moon, Titan or the dwarf planet Ceres. While that remains a strong possibility, new information gathered ...

Scientists say extraterrestrial life may exist elsewhere in the universe, but vast distances, enormous energy requirements ...

Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new Johns Hopkins University study finds. The work demonstrates that a certain ...

A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.