The Universe began 13.7 billion years ago with a Hot Big Bang, according to cosmologists.
But how do they know this?
How can we have scientific confirmation of something that happened so long ago?
In this talk, we will look at the observational data that led to and continues to support the Big Bang model of cosmology.

About the speaker: Dr. Susan Cartwright

Dr Susan Cartwright graduated from Glasgow University with a BSc in Astronomy and Natural Philosophy (Physics, to most people - but if Natural Philosophy was good enough for Newton it was good enough for Glasgow!). 

She then did a PhD in particle physics, also at Glasgow, and worked in Hamburg, Germany and San Francisco before arriving in Sheffield in 1989.  She is currently working on neutrino oscillations with the T2K experiment in Japan(which, incidentally, doesn't have any evidence that neutrinos travel faster than light - though it does have evidence that accelerators don't much like earthquakes).