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

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

Space: 1999 may have offered audiences a glimpse into the future, but its premise was rooted in the past — specifically, in a ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

From insects to the moon, people have mistaken very Earthly phenomena for UFOs many times.

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 ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

NASA's Curiosity rover found pure sulfur crystals inside a rock after backing over and accidentally crushing it on May 30, ...

From the gold rush to civil rights, the moon landing to 9/11, the US has always understood, mythologised and sold itself through the power of the still image ...

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

Scientists now believe life may be found on the notoriously inhospitable planet of Venus – but they believe it will have come ...