NASA Project HAVOC - Exploring Venus with a Blimp and a Floating City

Post 149147 by EwanG deleted for the following reason: Hey there, adding a coda about your own work isn't allowed in MetaFilter posts. If you want to post your own work, you can use the Projects section or put it on your profile page, but it shouldn't appear in your posts on the main site. -- LobsterMitten