Question: Are Ulf Merbold and Michael Foale both astronauts?

Context paragraphs:
Michael Walsh (publisher): Michael Jarrett Walsh owns and operates Old Earth Books, a small press science fiction publisher.  He primarily publishes re-prints, though occasionally he issues original books from established authors.  His first publication was a short story collection "Rude Astronauts", by Allen Steele, published in 1993.  He is active in science fiction fandom.

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.

The Black Pimpernel: The Black Pimpernel (Swedish: "Svarta nejlikan" ; Spanish: "El Clavel negro" ) is a Swedish drama film directed by Ulf Hultberg and starring Michael Nyqvist and Lisa Werlinder.  The film also features Kate Del Castillo, Luis Gnecco and Claire Ross-Brown in a minor part.

STS-63: STS-63 was the first mission of the US/Russian Shuttle-Mir Program, which carried out the first rendezvous of the American Space Shuttle with Russia's space station "Mir".  Known as the 'Near-Mir' mission, the flight used Space Shuttle "Discovery", which lifted off from launch pad 39B on 3 February 1995 from Kennedy Space Center, Florida.  A night launch and the 20th mission for "Discovery", it marked the first time a Space Shuttle mission had a female pilot, Eileen Collins, the first EVAs for both a UK born astronaut Michael Foale and a US astronaut of African heritage Bernard A. Harris, Jr. and it also carried out the successful deployment and retrieval of the Spartan-204 platform, along with the scheduled rendezvous and flyaround of "Mir", in preparation for STS-71, the first mission to dock with "Mir".

Peter Schilling: Peter Schilling (born Pierre Michael Schilling; January 28, 1956) is a German synthpop musician whose songs often feature science-fiction themes (aliens, astronauts, nuclear holocaust, etc.).

Expedition 29: Expedition 29 was the 29th long-duration expedition to the International Space Station (ISS).  The expedition formally began on 16 September 2011, with the departure from the ISS of the Soyuz TMA-21 spacecraft.  Astronauts Satoshi Furukawa, Michael Fossum and Sergey Volkov, who had arrived at the ISS aboard Soyuz TMA-02M in June 2011, began their Expedition 29 service at this time.

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.

Byron K. Lichtenberg: Byron Kurt Lichtenberg, Sc.  D. (born February 19, 1948) is an American engineer and fighter pilot who flew aboard two NASA Space Shuttle missions as a Payload Specialist.  In 1983, he and Ulf Merbold became the first Payload Specialists to fly on the shuttle.

Asteroid Day: It was co-founded by filmmaker Grigorij Richters, B612 Foundation COO Danica Remy, Apollo 9 astronaut Rusty Schweickart and Brian May, Queen guitarist and astrophysicist.  Over 200 astronauts, scientists, technologists and artists, including Richard Dawkins, Bill Nye, Peter Gabriel, Jim Lovell, Apollo 11 Astronaut Michael Collins, Alexei Leonov, Bill Anders, Kip Thorne, Lord Martin Rees, Chris Hadfield, Rusty Schweickart and Brian Cox co-signed the Asteroid Day Declaration.  Asteroid Day was officially launched on December 3, 2014.

Michael Widenius: Ulf Michael Widenius (often called Monty; born 3 March 1962, in Helsinki, Finland) is the main author of the original version of the open source MySQL database, a founding member of the MySQL AB company and is currently CTO of the MariaDB Corporation AB.

Supporting paragraphs: Ulf Merbold Michael Foale
Answer: yes