UV rays and Sharknados aren't the least bit scary when you find out what the sun and the ocean are really capable of.
We sat down with an astrophysicist and an oceanographer to ask them which they believed posed more of a threat. The consensus: unless you're traveling to the Mariana Trench or exploring depths of the ocean that have so much pressure they could crush the Titanic like a paper cup, the sun is the greater menace.
Watch the video above for details.
Justin C. Kasper is an astrophysicist in the Solar and Stellar X-Ray Group in the High Energy Astrophysics Division of the Harvard-Smithsonian Center for Astrophysics.
David Gallo is an oceanographer and the Director of Special Projects at Woods Hole Oceanographic Institution.