A NASA Expert Is Here To Answer Your Questions About Orbital Settlements

It's Space Habitats Week here at Gizmodo and io9. Planetary settlements have garnered a lot of attention lately, from caves on the Moon to eventual outposts on Mars (we're not going to talk about Mars One). Today, you can ask Al Globus, an expert on orbital settlements, about why humanity's future is in orbit rather than on the surface of other worlds.