Good news that the Nobel prize for Medicine etc has gone to two pioneers of stem cell research, John Gurdon from the UK and Shinya Yamanaka from Japan.
Wish I understood how skin cells (etc) could be 'reprogrammed'. I thought specialisation of cells was all to do with which genes are switched on or off - thousands of switches. I'm sure that's what Steve Jones said on In Our Time last month!
BTW I love the new background: light blue, very celestial.