Last night I watched a beautifully made Horizon programme called
Who's Afraid of a Big Black Hole. It's on BBC iPlayer now, and you can watch it if you're in the UK. Sadly it's not yet available to viewers in America, but hopefully will go on YouTube before long.
The crux of the programme was the discovery that all galaxies have a black hole at their centre, each one proportionally 1,000th of the size of the galaxy in which it's situated. The theory postulated that perhaps it's the black holes which help the galaxies form, and that this could give vital information about the big bang and birth of our universe. Fascinating!
The scientists (including
Michio Kaku and
Max Tegmark) who discussed their theories were all so passionate about their work that I found it tremendously uplifting and inspiring.
You can watch it
here.