User:Michaelzhou/sandbox
From Wikipedia, the free encyclopedia
imaThe term micro-g environment (also µg, often referred to by the term microgravity) is more or less a synonym for weightlessness and zero-g, but indicates that g-forces are not quite zero, just very small.[1] The symbol for microgravity, µg, was used on the insignias of Space Shuttle flights STS-87 and STS-107, because these flights were devoted to microgravity research in low Earth orbit.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/STS-130_Endeavour_flyaround_5.jpg/640px-STS-130_Endeavour_flyaround_5.jpg)