Scott Kelly grow 2 incheis in space be cos of the vertebrae. When you are in 0-gravity your vertebrae strashes.
When you are in gravity it stase togather.
We made planets. I made Neptune. A year for Neptune is more than 164 Earth years.
We bilt a ISS in glaktikraf. We bilt A mars space station in galaktekraft .
The last space shuttle lonshd was in 2011.

I lrnd obaut the robot arme on the ISS. it has 3 joints. The arlook has no windos . It has a switch to trne air on and off.
You haf to leve your helmet on your head in til you switch the switch up.

We learned frome EPIC and NASA Apps and books and websites.