Closeup of a Riftia tube worm's red gas exchange or 'plume' extending from its
tube. The blurring to the left and right is caused by the vent fluids actively
mixing with the seawater.
Image ID: expl6594, Voyage To Inner Space - Exploring the Seas With NOAA Collect Photo Date: 2011 July 23 Credit: NOAA Okeanos Explorer Program, Galapagos Rift Expedition 2011