Piers Sellers, astronaut, dies

Piers SellersBritish-born shuttle astronaut Piers Sellers dies of pancreatic cancer at the age of 61. A veteran of over 559 hours in space as a crew member of shuttle missions STS-112, STS-121 and STS-132, Sellers was trained as a meteorologist and did much of his research on climate change, eventually becoming NASA’s acting director of Earth sciences after retiring from flight duty.