Seven Earth-sized planets have been observed by NASA's Spitzer Space Telescope around a tiny, nearby, ultra-cool dwarf star called TRAPPIST-1. Three of these planets are firmly in the habitable zone. Over 21 days, NASA's Spitzer Space Telescope measured the drop in light as each planet passed in fro

HOW TO SURVIVE A PLAGUE is the story of the brave young men and women who successfully reversed the tide of an epidemic, demanded the attention of a fearfulnation and stopped AIDS from becoming a death sentence. This improbable group of activists bucked oppression and, with no scientific training, i...