The original project began because we know the universe is expanding. Everybody had assumed that gravity would slow down the expansion of the universe and everything would come to a halt and collapse. The big surprise was it was actually speeding up. ↗
His name is Marcus: he is four and a half and possesses that deep gravity and seriousness that only small children and mountain gorillas have ever been able to master. ↗
Gravity pulls our bodily fluids down, like water in a glass goes to the bottom part of a glass. In space, the water doesn't stay in the bottom of the glass. It distributes itself evenly over time throughout the entire volume of the glass. ↗
The microgravity or the very, very low amount of gravity that we have up in space forces some changes in different processes. It forces changes in us as human beings. ↗