The U.S. government, led by the Pentagon and CIA, censored or withheld for reasons of national security

After almost 40 years of investigating the shrouded history of UFOs throughout North America, Grant Cameron is getting some recognition.

'Something unexpected' is happening on the Sun, Nasa has warned.

Quietly and without much notice, the Air Force has reversed its policy of publishing statistics on drone strikes in Afghanistan

The species of bacteria, whose traces were found in probes of water from Lake Vostok, do not belong to any of the 40-plus known subkingdoms of bacteria

An asteroid the size of a city block will pass by Earth this weekend, but have no fear: There's no danger of it hitting our planet.

Between February 21 and February 27 many people reported seeing bright orange lights and flames in the sky.

A massive coronal mass ejection (CME) has put NASA’s Curiosity rover in a direct line of fire

Physicists in Italy said Wednesday they are achingly close to concluding that what they found last year was the Higgs boson, the elusive "God particle."

A strange-looking distant galaxy spotted by the Hubble Space Telescope.

A set of extraordinary and secretive surveillance programs conducted by the National Security Agency has been institutionalized, and they have grown.

The Federal Bureau of Investigation (FBI) has released the details of a 2009 investigation into internet activist Aaron Swartz to The Black Vault

Sequoyah County authorities say a man who died in a fire at his home may have spontaneously combusted.

NASA says the International Space Station has lost contact with NASA controllers in Houston.