How Deep Is The Mariana Trench, In Movie Terms? Last weekend, James Cameron dived to the bottom of the Mariana Trench. It’s about seven miles deep, deeper under the Earth’s surface than Everest is high.
2017 Astronomical Events Check out our calendar of some of astronomical events for sky watchers. Most of these natural occurrences can be observed with the naked eye but use a pair of binoculars or a telescope for best viewing.