1. A million Twitter followers and counting…congratulations to Hayden Planetarium Director Neil deGrasse Tyson!
Follow @neiltyson for “mostly random, occasionally coherent, cosmic brain droppings.”
Photo: David Gamble

    A million Twitter followers and counting…congratulations to Hayden Planetarium Director Neil deGrasse Tyson!

    Follow @neiltyson for “mostly random, occasionally coherent, cosmic brain droppings.”

    Photo: David Gamble