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

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

The curious minds at What If explore what would happen if there is alien life on Jupiter's moon Europa.

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

On a clear night, the sky may seem peaceful and empty. Yet beyond the stars visible to our eyes lies a universe so vast that it is difficult to imagine. Our gal ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years ...

These sci-fi films deserve far more love than they've received! Join us as we count down our picks for the most overlooked ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

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 ...

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” – Arthur C.

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Extreme heat baking large parts of the U.S. generates extra business – and grueling working conditions – for New England ice ...