The deep sea is the last frontier on our planet. Even though the ocean covers almost three quarters of the Earth’s surface – human eyes have seen only 5% of it. What limitations are keeping us from exploring this dark, mysterious expanse?Aug. 4, 2017
UP NEXT
U.K. Airbus plant converted into coronavirus ventilator factory
01:34
Buying renewable energy from your neighbor: One startup’s mission to reshape the marketplace
07:03
Big food is betting big on regenerative agriculture in climate change fight
02:36
Scientists trained rats to drive tiny cars. It could have huge implications for our mental health.
01:48
First commercial drone home delivery service in U.S. takes flight
01:53
Why leaves change color: the science of fall foliage