Question: Michael Foale and Dirk Frimout are both what type of physicist?

full_context: Document 1: André Kuipers: André Kuipers (] ; born 5 October 1958) is a Dutch physician and ESA astronaut. He became the second Dutch citizen, third Dutch-born and fifth Dutch-speaking astronaut upon launch of Soyuz TMA-4 on 19 April 2004. Kuipers returned to Earth aboard Soyuz TMA-3 11 days later.
Document 2: Frank De Winne: Frank, Viscount De Winne (born 25 April 1961, in Ledeberg, Belgium) is a Belgian Air Component officer and an ESA astronaut. He is Belgium's second person in space (after Dirk Frimout). He was the first ESA astronaut to command a space mission when he served as commander of ISS Expedition 21. ESA astronaut de Winne serves currently as Head of the European Astronaut Centre of the European Space Agency in Cologne/Germany (Köln).
Document 3: Chris Hadfield: Chris Austin Hadfield {'1': ", '2': ", '3': ", '4': "} (born 29 August 1959) is a retired Canadian astronaut who was the first Canadian to walk in space. An engineer and former Royal Canadian Air Force fighter pilot, Hadfield has flown two space shuttle missions and served as commander of the International Space Station.
Document 4: 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.
Document 5: Tim Peake: Major Timothy Nigel "Tim" Peake CMG (born 7 April 1972) is a British Army Air Corps officer, European Space Agency astronaut and a former International Space Station (ISS) crew member.
Document 6: Umberto Guidoni: Umberto Guidoni (born in Rome 18 August 1954) is an Italian astrophysicist, science writer and a former ESA astronaut, being the first European to visit the International Space Station. He is a veteran of two NASA space shuttle missions. He was also a Member of the European Parliament (MEP) from 2004 to 2009, elected within the Party of Italian Communists.
Document 7: Wubbo Ockels: Wubbo Johannes Ockels (28 March 1946 – 18 May 2014) was a Dutch physicist and an astronaut of the European Space Agency (ESA). In 1985 he participated in a flight on the space shuttle Challenger, STS-61-A, making him the first Dutch citizen in space. After his astronaut career, Ockels was professor of "Aerospace for Sustainable Engineering and Technology" at the Delft University of Technology.
Document 8: Michael Barratt (astronaut): Michael Reed Barratt (born April 16, 1959) is an American physician and a NASA astronaut. Specializing in aerospace medicine, Barratt served as a flight surgeon for NASA before his selection as an astronaut, and has played a role in developing NASA's space medicine programs for both the Shuttle-Mir Program and International Space Station. His first spaceflight was a long-duration mission to the International Space Station, as a Flight Engineer in the Expedition 19 and 20 crew. In March 2011, Barratt completed his second spaceflight as a crew member of STS-133.
Document 9: Christer Fuglesang: Arne Christer Fuglesang (] ) (born March 18, 1957 in Stockholm) is a Swedish physicist and an ESA astronaut. He was first launched aboard the STS-116 Space Shuttle mission on December 10, 2006, at 01:47 GMT, making him the first Swedish citizen in space.
Document 10: Claude Nicollier: Claude Nicollier (born 2 September 1944 in Vevey, Switzerland) is the first astronaut from Switzerland. He has flown on four Space Shuttle missions. His first spaceflight (STS-46) was in 1992, and his final spaceflight (STS-103) was in 1999. He took part in two servicing missions to the Hubble Space Telescope (called STS-61 and STS-103). During his final spaceflight he participated in a spacewalk, becoming the first European Space Agency astronaut to do so during a Space Shuttle mission (previous ESA astronauts conducted spacewalks aboard "Mir", see List of spacewalks and moonwalks 1965–1999). In 2000 he was assigned to the Astronaut Office Extravehicular Activity Branch, while maintaining a position as Lead ESA Astronaut in Houston. Nicollier retired from ESA in April 2007.
Document 11: Dirk Frimout: Dirk Dries David Damiaan, Viscount Frimout (born 21 March 1941 in Poperinge, Belgium) is an astrophysicist for the European Space Agency. He flew aboard NASA Space Shuttle mision STS-45 as a payload specialist , making him the first Belgian in space .
Document 12: Ulf Merbold: Dr. Ulf Dietrich Merbold (born June 20, 1941) is the first West German citizen and second German native (after Sigmund Jähn) to have flown in space. He is also the first member of the European Space Agency Astronaut Corps to participate in a spaceflight mission and the first non-US citizen to reach orbit in a US spacecraft. In 1983, he and Byron Lichtenberg became the first Payload Specialists to fly on the shuttle.
Document 13: Mike Melvill: Michael Winston "Mike" Melvill (born November 30, 1940 Johannesburg ) is a world-record-breaking pilot and one of the test pilots for SpaceShipOne, the experimental spaceplane developed by Scaled Composites. Melvill piloted SpaceShipOne on its first flight past the edge of space, flight 15P on June 21, 2004, thus becoming the first commercial astronaut and the 434th person to go into space. He was also the pilot on SpaceShipOne's flight 16P, the first competitive flight in the Ansari X Prize competition.
Document 14: Nicholas Patrick: Nicholas James MacDonald Patrick, Ph.D. (born 19 November 1964), is a British-American engineer and a former NASA astronaut. His flight on the 2006 "Discovery" STS-116 mission made him the fourth person born in the United Kingdom to go into space.
Document 15: Michael T. Good: Michael Timothy "Bueno" Good is a NASA astronaut and retired commissioned officer in the United States Air Force, holding the rank of Colonel. Mike Good flew aboard Space Shuttle "Atlantis" for its STS-125 mission. STS-125 was the final Hubble Space Telescope servicing mission. Good flew as Mission Specialist 2 on STS-132.
ground_truth: astrophysicist