According to our best understanding, the universe should be homogeneous at large scales. This means that it's ok to have ...

Mars is about 140 million miles from our cozy planet. A human mission to that cold, rocky neighbor would mean being away from Earth for about 3 years. But the things those explorers would see and ...

Scientists have found new but tentative evidence that a faraway world orbiting another star may be home to life. A Cambridge ...

But don't go imagining little green aliens with big oblong eyes ... we’re alone in the universe is one we’re capable of answering.” More news about our planet: Sign up for USA TODAY's ...

More broadly, it suggests that AI could play a major role in designing future tools for exploring the universe, from the smallest to the largest scales. "We are in an era where machines can ...

A new mission concept that would see a fleet of telescopes probing rocky planets in their stars' habitable zones should be able to tell us how common life is in the universe — even if the ...