Science
Resetting the Theory of Time
21:02
Space
The famous Ring Nebula is shown here in striking detail, in a composite image made from images from NASA's Hubble Space Telescope and infrared data from telescopes on Earth.
Ring Nebula Is More Like A Jelly Doughnut, NASA Says
()The Ring Nebula, whose iconic shape and large size make it a favorite of amateur astronomers, can now be seen in new detail, after NASA's Hubble Space Telescope captured a sharp image of the nebula. Researchers say the new clarity reveals details that were previously unseen, and a structure that's more complex than scientists believed.
The Salt
Chris Hadfield: Space Chef In Chief()
May 14, 2013 The Canadian astronaut didn't just tweet and sing his heart out during his five months as commander of the International Space Station. He also took time out to show the world what it's like to eat up there.
Monkey See
'Space Oddity' In Space: Yes, Astronauts Are Still The Coolest Humans()
May 13, 2013 If you were an astronaut, isn't a David Bowie cover what you'd be doing?
The Two-Way
Astronauts Go On Spacewalk To Fix Ammonia Leak()
May 11, 2013 NASA sent two astronauts on a spacewalk Saturday to fix an ammonia leak in one of International Space Station's power systems.
Astronauts Plan Spacewalk To Plug Space Station Leak()
May 11, 2013 The leak in a cooling system was discovered Thursday when "snowflakes" of ammonia were seen flying away from the station. Engineers on Earth were up overnight plotting an impromptu spacewalk.
The Two-Way
Spacewalk Planned To Repair Station's Leaky Cooling System()
May 10, 2013 Astronauts discovered an ammonia leak in a system designed to keep the International Space Station's power supply cool.
Author Interviews
Buzz Aldrin's Case For A 'Mission To Mars'()
May 9, 2013 In Mission To Mars, astronaut Buzz Aldrin lays out his plans for getting Americans on Mars by 2035.
