Physicist David Goldberg says time travel is within the realm of how the universe works, and he has a time machine in mind.
Tracing the paths of human migration through DNA to determine our origins and how we came to be so diverse.
Spine-tingling chills, haunted houses, vampires and werewolves -- exploring the science behind scary stuff, and debunking some myths.
New research says just how addictive smoking is for you depends on the color of your skin, and reveals the link between nicotine and melanin.
The myth and the truth behind great creativity and mental illness, and what research reveals about Virginia Woolf, Edvard Munch and others.
Join an online discussion with entomologist May Berenbaum on the pros and cons of using DDT to fight malaria.
Join an online discussion with Richard Wrangham, who argues that apes became human because they learned to cook.
The truth behind the right-brain-left-brain debate, and how the ubiquitous bit of pop science wisdom came about.
Join an online discussion with Jonah Lehrer on making decisions -- from picking a breakfast cereal to choosing a mate.
Why our president should understand physics, why physicists are an eccentric bunch and a must-read physics thriller.