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In an age when misinformation, alternative facts, and conspiracy theories have become mainstream, UFOs have risen to become one of the most-talked...

The first feature from Alison McAlpine is a dialogue with the heavens—in this case, the heavens above the Andes and the Atacama Desert in...

This feature-length documentary is a portrait of eclipse chasers, people for whom solar eclipses - among nature's more spectacular phenomena –...

China's FAST (Five-hundred-meter Aperture Spherical Telescope) can detect radio signals emitted tens of thousands of light-years away, and engineers...

Svalbard is a norwegian archipelago in the Arctic Ocean where the world's northernmost city is situated. It is a place where the underground,...

Photo sequence of the rare transit of Venus over the face of the Sun, one of the first chronophotographic sequences. In 1873, P.J.C. Janssen, or...