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Astronaut and climate scientist Piers Sellers dies at 61
It's sad when humanity loses pioneering astronauts who claim important firsts, but it's equally tragic when we lose those astronauts who quietly accomplished a lot both in orbit and on the ground. And unfortunately, we just lost one: Piers Sellers, a NASA astronaut and climate scientist, has died of pancreatic cancer at the age of 61. You may not have heard of him, but the UK-born explorer was a major force in NASA for decades.
