The first American woman in Space talks about her historic flight on NASA's 50th anniversary. She flew aboard Space Shuttle Challenger in June 1983 on the STS-7 mission.

Don't Be Afraid!! NEW PLANET IN OUR SOLAR SYSTEM!! Planet-X Nibiru Discovered!? SHOCKING NEWS 2016! Thirdphaseofmoon is looking for the best UFO footage Shot by People Like you from Around The World!

A European space telescope blasted off Saturday on a quest to explore the mysterious and invisible realm known as the dark universe.

SpaceX launched the European Space Agency’s Euclid observatory toward its ultimate destination 1.5 million kilometers away, the Webb Space Telescope’s neighborhood.

Watch live coverage of the SpaceX Crew-1 launch as four astronauts head to the International Space Station. The Crew Dragon will take off from NASA’s Kennedy Space Center in Cape Canaveral, Fla.

The prospect of space travel will feel much different after the Inspiration4 mission—the first orbital mission with an all-civilian crew—launches this fall. Once that happens, the history of human spaceflight will instantly be divided into two eras. There will have been the six decades after the fir

The brightest planets in the night sky are aligning for a must-see show in late February and March 2012. Start looking tonight!

As 2015 comes to a close we look back at an exciting year of reaching new heights and revealing the unknown for the benefit of humankind.

UNC Chanel Hill laboratory discusses tardigrades on the National Geographic channel, with a film of tun formation by Daiki Horikawa.

A photo taken by NASA’s Mars Reconnaissance Orbiter appears to show spiders walking across the surface of Mars, but, in this case, things do not always look as they appear.

SpaceX’s massive Starship rocket exploded minutes after it cleared the launch pad during a flight test Thursday. Elon Musk had said the test posed steep challenges and risks.