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

Directed by Steven SpielbergAn ordinary lineman becomes obsessed with mysterious visions after witnessing a UFO, while a ...

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 from now, should the nation be fortunate enough to survive that long?

See July 2026 sky events, including meteor showers, the Buck Moon, planetary alignments and when visibility may be affected.

Study pinpoints which rocky worlds could hang on to a life-supporting atmosphere ...

Alien Messages May Have Reached Earth Without Us Realizing It June 16, 2026 A new SETI study suggests we may be overlooking alien signals not because they aren't there, but because their own stars are ...

Sandiegouniontribune.com covers local news in San Diego County, CA, California and national news, sports, things to do and the best places to eat, business and the San Diego housing market.

Einstein here! Take on this extra-terrestrial Horrible Science quiz and answer the questions on all-things space!

There are a lot of core activities in the 'single-player' portion, and we're here to help you master all of them.

Moon bases, living to 100 and (finally!) flying cars. What 2076 and our future will look like may be stranger than we expect.