Explore the vast reaches of space and mankind’s continuing efforts to conquer the stars, including theories such as the Big Bang, the International Space Station, plus what the future holds for space travel and exploration.
Both skeptics and believers spend time researching UFO reports and explaining UFOs as natural or supernatural events, whether meteor or balloon or optical allusion or good old-fashioned mystery. Read more about explaining UFOs.
Since humans have observed strange phenomena, they have tried to explain them. UFO theories vary as widely in their credibility as in their imagination. Learn about theories of UFOs, aliens, spaceships, and the government.
In the early 20th century, wherever there were "flying saucers," there was also ridicule, dished out to anyone courageous or foolish enough to defy the orthodoxy. How involved were the government researchers in UFO research--and what did they find?
Modern UFO history began with the 1947 UFO sighting by pilot Kenneth Arnold. But the roots of UFO stories stretch back to ancient and medieval days. Learn about the history of UFOs and strange phenomena from ancient times to the mid-20th century.
Because an Earth-like environment is created within a spacesuit, it allows you to walk around in space in relative safety. But outer space is an extremely hostile place and could kill you if you aren't protected.
Hundred of meteors fly across the sky every night, but only a few make it to Earth. Meteors are best known for the brilliant streaks of light they make as they burn up in the atmosphere. Learn about 10 memorable meteor crashes that left an impression.
Less than 100 miles from Las Vegas, is the most famous secret military installation on the planet: Area 51. For decades, the U.S. government refused to acknowledge it existed. But now, the secret is out.
Bill Cooke, NASA scientist, is regularly shooting marbles into carefully arranged piles of soil. Why is NASA paying this man to do something most of us would do for free? It's all about our return to the moon.
From a distance, a space shuttle looks pretty sturdy. It's enormous and solid, and it can withstand extreme temperatures when it enters the Earth's atmosphere. But in some ways, a space shuttle is delicate.