Congratulations to Elizabeth Blackburn, Carol Greider, and Jack Szostak, who just won the Nobel Prize in Physiology or Medicine this morning. They won for their discovery of telomeres, the caps on the ends of chromosomes that keep them from degrading and ward off aging. The Nobel site has posted some useful information about why this was such a profound discovery.
Originally published October 5, 2009. Copyright 2009 Carl Zimmer.