Today was an eventful today. Professor Woolf spoke with us today, and we learned a lot. 
His favorite project was the little balloon telescope. He worked on it with Bill Harding. He enjoyed building it. Professor Woolf said it was fun to have something little to hold in your hand. And it was something very new. He found something with it. 

The most challenging project, he said, is to observe planets around empire stars and look at either their spectrum or even make images of them. It very challenging because of the light contrast. The stars are 10 billion times brighter than planet, so it's hard to see planets. Infrared is better but u can't see angular resolution.