The Demo-2 mission represents a new era for American spaceflight.
Sam Harris talks with David Deutsch about how modern people are already living like astronauts.
A 17-year-old British schoolboy spots an error in the data from International Space Station's radiation sensors.
Stephen Hawking has accepted an offer to go to space. He's one of the world's most famous scientists, who's been paralyzed due to ALS for much of his life.
What kind of person could withstand a trip to Mars and back? NASA and Hi-SEAS is trying to find out.