For decades, rumors of alien spacecraft at Area 51 have captivated the public imagination. In what is now known as one of the most infamous government cover-ups, an absence of information fueled ...

When you spot a UFO, are you really seeing something unknown? Our skies are full of objects, natural and manmade, that are not as strange as you might think when you spot them from the ground.

For decades UFOs have captivated the public, even as many scientists saw them as too taboo to investigate. Now, after highly publicized sightings of unidentified objects by Navy pilots, UFOs are ...

Few things beat a hurricane when it comes to showcasing nature’s fury. A hurricane’s gales alone can churn out about half as much energy as the global electrical generating capacity — not to ...

Every month NOVA hosts a science trivia night at the GBH Studio at the Boston Public Library! Come show off your trivia chops, meet fellow NOVA nerds, and win fun prizes! Each month features ...

For millennia, humans have harnessed the power of wind. Wind fueled the boats of the Egyptians, the irrigation of the Babylonians, and the grain-grinding windmills of the Persians. Today, modern ...

Quantum entanglement is one of the strangest and most fascinating phenomena in physics. Even Einstein didn’t believe it - he called it “spooky action at a distance” - but science has proven ...

NOVA: Could you tell us briefly about your own personal introduction to UFO's and what it is that got you believing in the reality? HOPKINS: I had a daytime UFO sighting on Cape Cod. It lasted ...

There's nothing mystical or complicated about a sextant. All it is is a device that measures the angle between two objects. The sextant makes use of two mirrors. With this sextant, one of the ...

The question of who built the pyramids, and how, has long been debated by Egyptologists and historians. Standing at the base of the pyramids at Giza it is hard to believe that any of these ...

The search for the cause of the fire that brought down Swissair Flight 111 on the evening of September 2, 1998, killing all 229 people aboard, took over four years and cost $39 million. It was one ...

Ever since 1722, when Captain Jacob Roggeveen, a Dutchman and the first European known to have reached Easter Island arrived, scholars have debated the origins of the isolated population he found ...