At Mission Control in Houston, Texas, Patricia McDivitt and Patricia White speak with astronauts James McDivitt and Ed White from as Gemini 4 passes over the United States. Gemini 4 was the second mission in the program, and ended on June 7th, 1965 after a five day mission.
When astronauts spacewalk, it looks like they're floating serenely in the vacuum of space. The reality: they're hurtling at 17,220 mph inside bulky pressurized suits. Here's the lowdown on spacewalking, from how it's done to what it costs.