State Department changes story about the death of employee.

Sierra Nevada Corporation's (SNC) Space Systems Dream Chaser flight vehicle arrived at NASA's Dryden Flight Research Center in Edwards, Calif.

Was First Iraq War 'Leak' by Swiss Man in...1958?

The UFO footage below comes from the city of Limeira in Brazil.

Egypt has closed the Great Pyramid outside Cairo after rumours that groups would try to hold special rituals on 11 November at 11:11 (09:11 GMT).

President Obama twice did not answer the question of whether his administration denied requests for help from Americans under attack at the U.S. consulate in Benghazi on September 11.

Scientists have succeeded in "cloaking" an object perfectly for the first time, rendering a centimetre-scale cylinder invisible to microwaves.

“My administration,” President Obama wrote on his first day in office, “is committed to creating an unprecedented level of openness in government.”

If you’ve dreamed of walking on the moon and have $750 million to spare, you can make that dream a reality.

AS the LAPD surrounded the burning cabin containing former US Marine Christopher Dorner, police called for a worldwide Twitter blackout.

Of all the 6,700 previous top-secret files in the FBI’s online reading room, one single- page memo about a UFO report has attracted almost a million viewers

A research group at the University of Washington, funded by NASA, is about to build a fusion-powered rocket.

A large mass of granite has been found on the seabed off the coast of Rio de Janeiro, suggesting a continent may have existed in the Atlantic Ocean

These days, it’s not just finding an exoplanet. It’s how you find that Earth-like body.