NASA: Let's Explore Venus in Solar Zeppelins and Build Cloud City There

There's a lot we can learn about Earth's atmosphere from studying Venus, however, it's Venus' crushingly thick air—precisely what we want to study—that is preventing us from sending manned missions there. But this radical zeppelin could finally help us unlock the secrets of our celestial neighbor. » 12/19/14 11:40am 12/19/14 11:40am