Photos: Inside Johnson Space Center's Neutral Buoyancy Lab

Another view

NBL opened in 1995. When they initially started filling it, they turned on the water full blast and the city of Houston's water pressure dropped to 0, prompting a call to NASA as to what what going on.

SEE: NASA shows the world its 20-year virtual reality experiment to train astronauts: The inside story

Image: Erin Carson/TechRepublic

By Erin Carson

Erin Carson is a Staff Reporter for CNET and a former Multimedia Editor for TechRepublic.