Testing Darwin
Digital organisms that breed thousands of times faster than common bacteria are beginning to shed light on some of the biggest unanswered questions of evolution
by Carl Zimmer
Think Tank
Great scientists discuss the breakthroughs of the last quarter century—and the next
Earth Without People
What would happen to our planet if the mighty hand of humanity simply disappeared?
The Super Bowl of Smart
Mamas, don't let your babies grow up to be slackers when the difference between success and failure is as simple as building a robot
The Grandest Rocket Ever
After scientists made the bomb, they had to redeem themselves
Worrying About Killer Flu
Asia is brewing a deadly virus, but only with the right ingredients can it morph into an epidemic
X-Ray Vision
A completely different view of ravenous black holes, exploding stars, colliding galaxies, and other wonders of the universe a human eye can't see
