The Plan to Seed Life on Alien Planets
The 50th anniversary of "Earthrise" is the perfect opportunity to think about sending Earth's life to the stars.
The World's Largest Snake Doesn't Need Males to Breed
We talked to the zookeeper in charge of Thelma, the world-famous snake that just had a virgin birth. It may be unsettling to imagine one less barrier in the way of more snakes, but finding new ways of making snakes might just be important.
Peter Lawrence Kane