Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
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.
Years of planning combined with a network of telescopes allowed scientists to grab the first pictures of the Kuiper Belt Object.
Hubble scanned Jupiter but saw no dark smudges, which means the object didn't descend beneath the clouds.
Iridium uses satellites to provide voice and data services for commercial and government clients.
Scientists propose new theory that could reshape our understanding of the universe.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.