Latest Issue 25 May 2015 Latest Issue 25 May 2015 NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute FeatureSpace Knocking on Pluto's door NASA's New Horizons spacecraft is closing in on Pluto. by Richard A. Lovett News Life Sciences News Life Sciences The most ancient evidence of life on Earth? by Belinda Smith Ancient bacteria in Pilbara rock are merely volcanic minerals, scientists say. News Life Sciences News Life Sciences The germ at the scene of the crime by Viviane Richter Tracing criminals through microbes might be the next big thing. News Life Sciences News Life Sciences Oldest stone tools ever found by James Mitchell Crow Stone tools made 3.3 million years ago have been found in Kenya. News Physical Sciences News Physical Sciences Making a robot with bat powers by Cathal O'Connell Engineers wanting to replicate a bat's sonar skills made a robot with ears and twitching nose. Feature Technology Feature Technology The magic of magnets by Jason England A magician helped Napoleon win his Algerian campaign by using magnets. Feature Life Sciences Feature Life Sciences From the vault: Clones are all two real by COSMOS editors A look back at some of our most popular articles.