SETI Eavesdrops in Search of Smart Aliens

TECH SPACE HUMAN WORLD HISTORY ANIMALS EXPLORATION VIDEO View Online SETI Eavesdrops in Search of Smart Aliens Astronomers seeking out extraterrestrial intelligence have used a powerful radio telescope to eavesdrop on a star system that is relatively close to Earth. READ MORE More Treasures Recovered From Antikythera Shipwreck The objects from the wreck, dubbed the "Titanic of the ancient world," include a gold ring and an artifact that may have been a weapon for fighting off pirates. READ MORE WATCH VIDEO: How This Derelict Ship Is Fighting China The dilapidated Sierra Madre and its crew are protecting Philippine waters from the Chinese. Gravitational Waves Should Reveal 1,000 Black Hole Merges Per Year Future gravitational wave observatories should be able to detect ripples in space-time from 1,000 massive black hole collisions a year. . READ MORE WATCH VIDEO: More Gravitational Waves Discovered by LIGO  Advanced LIGO detectors have identified a second gravitational wave event occurring from the merger of two black holes. What Would A World With Legal Pot Look Like? Marijuana is legal to some degree in many U.S. states and even in some countries completely. Could pot one day be legal around the world? WATCH Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! At Discovery Communications, we value your privacy. If you would like to be removed from future communications like this, please click here. Privacy Policy Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © Copyright 2016 Discovery Communications, LLC