Life on MarsJohn Grotzinger talks about once-flowing rivers, the drinkable water—and when we’ll walk on the red planet
Astronomers go planet huntingFrom the archives: New research suggests our galaxy alone may be filled with billions of planets—literally
Probably not the last blog entry I’ll ever writeColby Cosh on the Mayan calendar and the end of the world
December 21 is not the end of the world, says NASA Youtube videoScience used to debunk doomsday myths
Astronaut Chris Hadfield readies for mission of a lifetimeHadfield will become the first Canadian to command the International Space Station
Earth at Night: NASA shows off ’big black marble’Satellite takes 22 days and 312 orbits to capture the night
Inside NASA with Chris HadfieldA tour of the elite training facility that turns mortals into astronauts