Man makes deepest-ever dive in Mariana Trench and discovers... litter

A retired naval officer dove in a submarine nearly 36,000ft into the deepest place on Earth, only to find what appears to be plastic
Read more: https://www.theguardian.com/world/2019/may/13/man-makes-deepest-ever-dive-in-mariana-trench-and-discovers-trash?source=Snapzu