March 15, 2013 The comet's now putting on a show in the Northern Hemisphere's night sky. Using its orbiting observatories, NASA captured a stereo view from space that offers a unique perspective.
March 15, 2013 Scientists say the discovery of more carbon than oxygen and no methane in the atmosphere of a gas giant favors one theory of solar system formation.
March 8, 2013 The challenge, launching during the SXSW festival Saturday, asks anyone with an Internet connection to try to create a rocket engine. The 3-D designs can be edited by users around the globe, a model the organizers hope will decrease the cost of space innovation and unleash "untapped potential around the world."
March 6, 2013 What happened to the future? In the '60s and '70s, says astrophysicist Neil Tyson, kids thought about going to space, exploring; tomorrow seemed so, so near. But no longer. Our world these days, is tighter, more awake to limits, and that's not good, says Tyson, not good for kids, and especially not good for the economy. Tyson insists that dreaming makes us richer.
March 3, 2013 Mechanical difficulties after Friday's launch pushed back the capture of the unmanned capsule by a day. The Dragon will stay in place until the end of March, after dropping off 1,200 pounds of supplies, and return with more than twice that amount.
March 1, 2013 SpaceX founder Elon Musk says the resupply mission to the space station experienced a thruster problem, but it has been fixed.
February 27, 2013 The 72-year-old businessman who flew to the International Space Station in 2001 now wants to take advantage of planetary alignment in January 2018 that would allow for people to fly to Mars, loop around the planet, and return to Earth. Dennis Tito says he won't go, but the plan is to send a man and a woman on the 501-day trip.
February 26, 2013 The Chelyabinsk meteor was part of a group of Earth-crossing objects known as Apollo asteroids, scientists believe.
February 22, 2013 The meteor that caused at least 1,000 injuries in Russia after a startling and powerful daytime explosion one week ago has been identified as a chondrite, the most common type of meteor that falls on Earth. But that hasn't stopped a black-market economy from developing around the fragments.