NASA Communications Demonstration

[Rudy Toody]

Something for the space cadets.

 

[petrusbroder]

Thanks for the link - my son will love that.
BTW, he got an A in astronomy answering 100% of all Qs correctly ... we are not talking primary school astronomy, more university level including celestial mechanics, calculation of distance by using the red shift etc.

/End of proud father's bragging./