Question: Are Franz Viehböck and Mark Shuttleworth both astronauts?

Context paragraphs:
Allan Phillips: Allan Phillips was born in Maracaibo, Venezuela.  He's a music producer, composer, arranger, and musician now residing in Southern California.  His musical style is a blend of contemporary music with ethnic elements from around the world.  On October 18 of 2008, he won an Emmy Award for the musical score of the Public Television series "Grannies on Safari".  In September 2009 Allan Phillips got a Grammy nomination for production of Peruvian singer Eva Ayllón's Kimba Fá.  In 2011, his composition Moon/Luna Llena was chosen as a wake up call song for the astronauts aboard the space shuttle Endeavour’s STS-134 mission commanded by Capt. Mark Kelly.  Also in 2011, music he composed and produced for Clark Marketing Solutions earned three Awards of Distinction from the 2011 Communicator Awards in the categories of audio production, jingle production and video production/use of graphics for work created for automotive client Diamond Valley Honda.

Thawte: Thawte Consulting (pronounced "thought") is a certificate authority (CA) for X.509 certificates.  Thawte was founded in 1995 by Mark Shuttleworth in South Africa.  As of December 30, 2016, its parent company, Symantec Group is collectively the third largest public CA on the Internet with 17.2% market share.

Ravi Naidoo: Ravi Naidoo is the recipient of the 2015 Sir Misha Black Medal for innovation in design education.  He is the founder of Interactive Africa, a Cape Town based media and project management company responsible for the First African in Space mission with Mark Shuttleworth, and the marketing bid to host the 2010 Fifa World Cup.

Impi Linux: Impi Linux was a South African Linux distribution which focused on the enterprise and government sector.  The project name originally referred to Impi meaning group of warriors in the Zulu language.  In September 2005, Mark Shuttleworth invested R10 million in return for 65% of Impi Linux.

Canonical (company): Canonical Ltd. is a UK-based privately held computer software company founded and funded by South African entrepreneur Mark Shuttleworth to market commercial support and related services for Ubuntu and related projects.  Canonical employs staff in more than 30 countries and maintains offices in London, Austin, Boston, Shanghai, Beijing, Taipei and the Isle of Man.

Franz Viehböck: Franz Artur Viehböck (born August 24, 1960 in Vienna) is an Austrian electrical engineer, and was Austria's first cosmonaut.  He was titulated "„Austronaut“" by his country's media.  He visited the Mir space station in 1991 aboard Soyuz TM-13, returning aboard Soyuz TM-12 after spending just over a week in space.

Inktank Storage: Inktank Storage is the lead development contributor and financial sponsor company behind the open source Ceph distributed file system.  Inktank was founded by Sage Weil and initially funded by DreamHost and Mark Shuttleworth.

Mark Shuttleworth: Mark Richard Shuttleworth (born 18 September 1973) is a South African entrepreneur who is the founder and CEO of Canonical Ltd., the company behind the development of the Linux-based Ubuntu operating system.  In 2002, he became the first citizen of an independent African country to travel to space as a space tourist.  He currently lives on the Isle of Man and holds dual citizenship from South Africa and the United Kingdom.

Shuttleworth Foundation: The Shuttleworth Foundation was established in January 2001 by South African entrepreneur Mark Shuttleworth as an experiment with the purpose of providing funding for people engaged in social change.  While there have been various iterations of the foundation, its structure and how it invests in social innovation, the current model employs a fellowship model where fellows are given funding commensurate with their experience to match a year's salary, allowing them to spend that year developing a particular idea.

Beijing GNU/Linux User Group: The Beijing GNU/Linux User Group (BLUG) was founded in Beijing on November 19, 2002 and has since met at least monthly without exception.  Awarded Best SFD 2007 event (1 of 3), Golden Bull 2008 by CSDN as a technology driving group and Best LUG of the Month by Linux Format early 2008.  The Beijing GNU/Linux User Group has also been the host of many famous actors of our movement such as RMS, Ulrich Drepper, Mark Shuttleworth or Louis Suarez to name just a few.

Supporting paragraphs: Franz Viehböck Mark Shuttleworth
Answer: no