Like many subsea drones, the 10-foot-long Icefin is shaped like a torpedo. It made headlines in 2014 as one of the prototype drones that plumbed the Antarctic as part of a NASA program to test the technology. Now, a new program called the Ross Ice Shelf and Europa Underwater Probe (RISE UP), NASA is funding three expeditions to put an upgraded Icefin under the ice. This was its first deployment..

Source: The Search for Aliens Starts Now—in Antarctica

When Icefin dove to the sea floor it found odd, feathery creatures waiting for them. “My favorite moments from the seafloor were our visits by crinoids…it was incredible to behold,” she says, referring to the to the odd, feathery dwellers that call Antarctica home.