Visit the places that help you remember--and forget--in Scientific American Mind's tour of the brain
And boost your social skills to boot
How a spacecraft propelled by ion drives could deliver humanity deeper into space than ever before. Read more in our special report on deep-space exploration
Science aficionados have odd and surprising interests
The first man-made object to land on Mars arrived 40 years ago this month, and NASA's Curiosity rover should soon depart for the Red Planet. Here is a look at where humankind's many Mars landers have touched down, and where the planet betrays a history of all-important liquid water...
Two Mars missions are scheduled to launch this month. How have their predecessors fared? Find out more in Exploring the Red Planet