While the new data from this cruise are hot off the presses and the samples have yet to be analyzed, one of the plume signals we intercepted on Sunday had a curious combination of plume signals that we had previously seen during a 2009-2013 project studying hydrothermal venting on the equally ultra-slow spreading Mid-Cayman Rise in the western Caribbean. This figure shows all the different kinds of analyzes we conducted there on the physics, chemistry, and microbiology of the ocean associated with that hydrothermal plume. Out here, we have the in situ sensor data in-hand already for particles and redox anomalies, the latter using instruments provided by collaborators in the US and Japan (Hi Sharon! Hi Ko-ichi!). The next job has been started by two groups on the ship—Jill and Gunter, and Kevin and Laura—to measure hydrogen, methane, and ammonia concentrations. That will be followed on shore by work from Wolfgang Bach’s team to analyze trace metal content (Alex and Elmar are out here with us to make sure they collect the right samples) and a range of further microbiological analyses in Antje’s lab. But hopefully we don’t need to wait that long to learn more. Better still would be to fly right over, and photograph, the vent site.