Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
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.
Scientists think a little-known compound called pyrophosphite could have allowed first life on Earth to form.
Calvin Dale Smith of Houston has been charged with stealing Sally Ride’s flight suit worn on her historic 1983 mission.
Recent moon missions have shown frozen water in shadowed craters on the moon's surface and ice under the gray dust.
A long time ago, in a galaxy far, far away...
Scientists hope the Hayabusa has collected the first fragments from a moving asteroid, material which could reveal vital clues about the universe.
The Expoxi spacecraft, originally built for another mission, will fly by the Earth on its way to the comet Hartley 2.
South Korea was trying to join an exclusive club of nine nations that have put a satellite into orbit using a domestically assembled rocket.
Upload your name and photo and be part of a historic rocket ride.
For a decade, man had used the funny-looking rock' in his garden to deter his dog from digging.
The rocket delivered the Dragon capsule, a mockup of the company's spacecraft aimed to facilitate human space travel, into orbit.
A retired dentist in West Virginia found the rock fragment among his late brother's possessions a decade ago.
Anthony Wesley, a computer programmer, alerted the cosmic collision to professional and amateur sky-gazers.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.