Here's what happens to the human body in outer space
What happens when stuff breaks in space?
Why this startup believes 3D printing in space will be a game changer
What a controversial asteroid mission tells us about US space policy
Where did the commercial space sector come from?
Can XCOR build the world's first airline for space?
This week in ideas: Rockets in flight, poverty in decline, and explaining the unexplainable
The new space race is here
The fake disease that saved Rome's Jews
This week in ideas: An artificial pancreas, Google's new translation tech, and a massive Mars rocket
What to expect in a post-meat future
Elon Musk explains the economics of getting to Mars
This week in ideas: How VR changes our dreams, a stem cell miracle, and the shoes of the future
This computer can write 2,000 snarky articles per second
This Army sergeant started a 24-hour hotline for service members with PTSD
Self-driving cars are finally here. Sort of.
Meet the wounded veteran using bionics to take back his independence
This week in ideas: Reasons to feel good about humanity
A regulatory fight is brewing over experimental stem cell therapies
The future of sports and human performance