Richard Robert "Ricky" Arnold II is an American educator and a retired NASA astronaut. He flew on Space Shuttle mission STS-119, which launched March 15, 2009 and delivered the final set of solar arrays to the International Space Station. He launched again in 2018 to the ISS, onboard Soyuz MS-08.
Arnold was raised in Bowie, Maryland and is married to Eloise Miller Arnold of Bowie. They have two daughters.