We will have a full slate of three talks. Join us to learn about the recent exploration of an enigmatic submarine province in the southern Ocean, exoplanets and how their atmospheric properties are revealed, and the rise of oxygen in the Earth’s atmosphere more than 2 Gy ago on the basis of new oxygen isotope studies. If you come to the Cosmos Club, please remember to bring your Covid vaccination card. It will be checked. Non-members are welcome! Details of the talks, including the Zoom link, will be sent to members shortly. Contact Michael Ackerson (ackersonm[at]si.edu) for the Zoom link if you do not have it.