Google doodles tribute to Halley

Right after Marie Curie's Google Doodle we have one for the 335th birthday of Edmond Halley (The famous English astronomer and mathematician (1656-1742)). He is probably best known to most people for the comet named after him. He was the second Astronomer Royal at Greenwich and was part of the first effort to scientifically date Stonehenge and made significant contributions to actuarial science on calculation of life annuities.