Neutral Buoyancy
Two astronauts wearing white suits float in a large tank of water

Two astronauts work in NASA's Neutral Buoyancy Laboratory near NASA's Johnson Space Center in Houston, Texas. Image Credit: NASA

      the state of keeping a person or thing under water from sinking or floating, using weights or floats



Sentences:
The Neutral Buoyancy Laboratory is a pool filled with over a million gallons of water.

Working in the neutral buoyancy laboratory helps astronauts train for spacewalks.



More Information:
http://www.nasa.gov/audience/formedia/presskits/ffs_gallery_nbl.html
http://www.nasa.gov/images/content/64574main_ffs_gallery_nbl_image4.jpg
http://www.nasa.gov/audience/formedia/presskits/ffs_gallery_nbl_image2.html
http://www.nasa.gov/audience/formedia/presskits/ffs_gallery_nbl_image1_prt.htm