If you are participating with a teacher, please enter your teacher's code here:
An email has been sent to you (or your parent if you are under 18) to get you signed up for the challenge. Stay tuned!
In zeroG astronauts still being used to Earth dimensions, will still use phrases such as "Up" or "Down", but these concepts do not apply in outer space. This small object is an indicator placed on the outside of the ISS where the red marker is indicated as "Up" and the green is "Down" providing the astronauts with an actual marker to go by to help communicate between each other.
Our 3D viewer requires a WebGL enabled browser http://get.webgl.org