Deep in the ocean, a mission is underway to explore the “unknown and poorly known areas” around the Mariana Trench.
“Despite decades of previous work in the region,” the National Oceanic and Atmospheric Administration says, “much of the [trench] and surrounding areas remain unexplored.”
Between April 20 and July 10, the government agency and its partners are collecting and sharing data on the creatures and habitats they find in the Mariana Trench, which stretches 1,500 miles in the Pacific Ocean near Guam.
You can follow NOAA’s live video streams from the Okeanos Explorer, including images from the ocean floor.
It’s all pretty mind-blowing when you think about it, but here’s one of our favorites: A mesmerizing jellyfish found around 3,700 meters (2.3 miles) down (video above!).
“At the beginning of the video, you’ll see that the long tentacles are even and extended outward and the bell is motionless,” NOAA notes. “This suggests an ambush predation mode. Within the bell, the radial canals in red are connecting points for what looks like the gonads in bright yellow.”