The dive on June 20 was the sixth of the Windows to the Deep 2018 expedition, but it also marked a major milestone for NOAA Ship Okeanos Explorer, as now over 400 remotely operated vehicle dives have been deployed from the ship. These dives have taken place in some of the most remote parts of Earth, and the data collected during these dives is helping to increase our understanding of the deep ocean, so that we can better manage and protect our blue planet.