Gravity

I've just been to a talk by Professor Brian Cox on the subject of gravity. We have the biennial science and arts festival kicking off in town this week, and the talk was the opening event. He covered Newton's and Einstein's theories, describing how time and space are not constant. He also talked about the expansion of the Universe and, briefly, about what may have existed before the Big Bang. Headspinning stuff!! Some of the photos from Cassini and the Hubble telescope were amazing - sadly it's too cloudy here for me to make any attempts at astro photography so this tongue in cheek mock up will have to do