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About Astro Pi

What is Astro Pi?

The European Astro Pi Challenge offers young people the amazing opportunity to conduct scientific investigations in space by writing computer programs that run on Raspberry Pi computers aboard the International Space Station (ISS).

About the computers

The International Space Station (ISS) with Earth in the background.


As part of British ESA astronaut Tim Peake’s Principia mission (2015–2016) on the ISS, two space-hardened Raspberry Pi computers, called Astro Pis, equipped with environmental sensors, were sent to the ISS and then used to run students’ and young people’s programs, with ISS crew support. As well as Tim, astronauts Thomas Pesquet, Alexander Gerst, David Saint-Jacques (CSA astronaut) and Luca Parmitano have all acted as ambassadors for the challenge.

Astronaut Tim Peake holding an Astro Pi computer


  • 17,000
    young people participated in 2019/20
  • 25
    countries participated across Europe and Canada in 2019/20
  • 40.5%
    Female representation across the Astro Pi Challenge 2019/20
  • Increase in Media attention raised the profile of STEM education

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