Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
Italian Northern League party leader Mario Borghezio has urged the EU to 'open the books' on UFO encounters.
The new policy envisions collaboration with other countries and with companies on new initiatives.
Aerospace giant hopes its new CST-100 capsule will replace retiring space shuttles.
Experts debate the use of nuclear weapons to deter an Earth-killing asteroid.
Sex in space may be out of bounds, but astronauts have been known to succumb to earthly passions.
Slightly more than half of the moon's surface was shaded at the eclipse's peak.
Experts sound off on misconceptions about Obama's much-maligned space plan.
The moon Io has one of the most bizarre -- and smelly -- landscapes in our solar system.
The planet Osiris, named after the god of Egypt's underworld, is a place where humans would be boiled, poisoned and ripped apart by superstorms.
Telescope in Hawaii containing the world’s largest digital camera will scan the skies for Earth-killing asteroids heading our way.
Mysterious 'John F' smuggled tiny wafer etched with priceless art masterpieces to the moon aboard Apollo 12.
America's most famous astronaut questioned the decision to retire the shuttles and rely on Russia to take astronauts to the International Space Station.
The docking marked a historic first because no previous space station has ever had two female residents at the same time.
The discovery is a candidate for imaging with a high-resolution camera, which would allow the students to look inside the cave.
European CoRoT satellite reveals 6 new exoplanets that may change how we understand the evolution of other solar systems.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.