Are Ulf Merbold and Michael Foale both astronauts?
Michael Foale Colin Michael Foale, CBE (born 6 January 1957) is a British-American astrophysicist and former NASA astronaut. He is a veteran of six Space Shuttle missions and extended missions on both Mir and the International Space Station. He was the first Briton to perform a space walk, and until 17 April 2008, he held the record for most time spent in space by a US citizen: 374 days, 11 hours, 19 minutes. He still holds the cumulative-time-in-space record for a UK citizen.
Mark Hulsbeck Mark Whitney Hulsbeck (born February 20, 1956) is an American professional aquanaut. He serves as an Oceanographic Operations Field Manager and research diver for the Aquarius Reef Base, the world's only undersea research laboratory, operated by Florida International University. Hulsbeck is nicknamed "Otter".