Archive: Sat Jun 2013

Two decades ago, on the recommendation of acclaimed astrophysicist Carl Sagan, NASA adopted a definition of life simply stating, “Life is a self-sustained chemical system capable of undergoing Darwinian evolution.” [1] While this definition is certainly…

Our brain contains billions of cells called neurons, each connected to one another in a complex network, permitting us to think, move, and assimilate information about our environment. While many cells in our body can talk to one another, neurons are…