2/19: Quote was added from the director of the White House Office of Science and Technology Policy.

A NOAA ocean glider, seen in waters off the coast of Puerto Rico in July 2018. These robotic, unmanned gliders are equipped with sensors to measure the salt content (salinity) and temperature as they move through the ocean at different depths. The gliders, which can operate in hurricane conditions, collect data during dives down to a half mile below the sea surface, and transmit the data to satellites when they surface. (Image credit: NOAA)