Gigantic Gas Cloud on Collision Course With Our Galaxy

TECH SPACE HUMAN EARTH HISTORY ANIMALS ADVENTURE VIDEO View Online Gigantic Gas Cloud on Collision Course With Our Galaxy In case you didn't know, a huge -- like, on a galactic scale -- cloud of gas is currently speeding toward our galaxy at 700,000 mph. READ MORE Finest Hours: Amazing Rescues at Sea From Dutch cruise ships to crashed seaplanes, learn about the Coast Guard's most incredible rescue operations. READ MORE WATCH VIDEO: Real Life Sea Monsters We unvocer the coolest -- and most terrifying -- creatures in the sea. Gene-Hacked Mosquitos Could Fight Zika Virus Genetically modified mosquitoes will kill wild ones by making love, not war. READ MORE WATCH VIDEO: Why Can't We Get Rid of Mosquitoes? Why haven't we already eradicated these killer bugs? How Can Learning Stuff Be Physically Tiring? Ever have to cram a bunch of new information into your brain in a short time? Odds are you felt exhausted afterward. What gives? 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 2015 Discovery Communications, LLC