At the 2nd iteration of the Lunar Reclamation Society's Europa Workshop (the 3rd will be held at ISDC '98 Milwaukee), one of the things talked about was the natural (or artificial) possibility of pockets of trapped volcanic gas (CO₂?, 15 ATM?, 50° F?) in concavities in the underside of the ice crust, guestimated at 1-5 km thick, but possibly thinner here and there. Such a harbor could be an interesting place to have a submarine base. Add artificial light, a pressure dome and ...

For more, read the report on the Europa Workshop II, this issue.