Given the size and age of the universe, it should be full of species with technology far more advanced than our own. But so far there is no trace ...

For as long as humans have looked toward the stars, one question has remained unanswered: how did life begin? Scientists have ...

Before solving that mystery, however, astronomers must determine how quickly those distant planets are truly spinning. Slower ...

Earth’s neighbor still has secrets that science is trying to figure out, and one of them is potential signs of life.

A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...

Unusual mudstones found on the Red Planet are potentially associated with ancient Martian microbes. Scientists find new but tentative evidence that a faraway world orbiting another star may be home to ...

English science fiction writer Arthur C. Clarke once said, “Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” It’s a line that has motivated ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The Milky Way galaxy has more than 400 billion stars in it. Over the last few decades, ...

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

A NASA rover image of a rock formation on Mars resembling a doorway has sparked speculation about alien life, though experts ...

We’ve found life on earth in places that we didn’t think life could possibly exist When we’re contemplating the existence of life beyond our planet, it’s worth considering that we’ve discovered ...