From afar, it looks like snow, but upon closer inspection, you’ll discover that these are actually webs containing millions of spiders. The creepy phenomenon is known as “spider ballooning”, and this occurrence happened in the Southern Tablelands region of New South Wales, Australia. Why does this happen? Well, this is how arachnids migrate, according to Naturalist Martyn Robinson of the Australian Museum. Spiders first climb to the top of vegetation, release a silky stream of thread and then are carried aloft for thousands of kilometers. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one of a cool, but useless, quadrotapult machine.