The Mariana ... Trench), is the deepest spot in the ocean. Its depth is difficult to measure from the surface, but in 2010, the National Oceanic and Atmospheric Administration used sound pulses ...

They may look as clunky as a suit of armour but some atmospheric ... HMS Challenger was the first to sound the depths of the Mariana Trench in 1875. The deepest point in the trench, Challenger ...

A whopping 89 percent of the plastic in the study was single use, the type that's used once and then thrown away, like a plastic water bottle or disposable utensil. The Mariana Trench is no dark ...

Only three explorers have made the epic journey there: 11km (seven miles) down to the bottom of the Pacific Ocean's Mariana Trench ... may look as clunky as a suit of armour but some atmospheric ...