https://youtu.be/nJiw2NxqoBU?list=PLTiv_XWHnOZoFCYPi25rbz5gMM01ZHY-1

All WAS members – This is an interesting mathematics problem set by NASA for us to try. See if you would like to have a go! Click on the link below. Even if you are not mathematical, its a bit…

http://www.jodrellbank.manchester.ac.uk/astronomy/nightsky/