Post Syndicated from Sam Duffy original https://www.raspberrypi.org/blog/building-new-astro-pi-units-international-space-station/

We are really excited that our two upgraded Astro Pi units have arrived on the International Space Station. Each unit contains the latest model of the Raspberry Pi computer, plus a Raspberry Pi High Quality Camera and a host of sensors on a custom Sense HAT, all housed inside a special flight case designed to keep everything cool and protected. Here is the story of how the Astro Pi units were built:

The upgraded Astro Pi units have been designed and built in collaboration with ESA Education, the European Space Agency’s education programme. The Astro Pis’ purpose is for young people to use them in the European Astro Pi Challenge. The film highlights the units’ exciting new features, such as a machine learning accelerator and new camera, which can capture high-quality images of Earth from space using both visible light and near-infrared light.

There’s an extended team behind the new hardware and software, not just us working at the Raspberry Pi Foundation and the European Space Agency.

“Thanks to our friends at ESA, and all the people who have shared their unique expertise and knowledge with us, […] we’ve managed to take two ordinary Raspberry Pi computers from the production line in Wales and see them end up on the International Space Station. It’s been a real privilege to get to work with such an amazing group of space professionals.”

– Richard Hayler, Senior Programme Manager and lead engineer of the Astro Pi units

The new Astro Pis are all ready to run young peoples’ computer programs as part of the European Astro Pi Challenge. The young people who successfully proposed experiments for the 2021/22 round of Astro Pi Mission Space Lab have just submitted their programs to us for testing. These programs will run the teams’ experiments on the new Astro Pis in May.

Your young people’s code in space

There is still time until 18 March to take part in the 2021/22 round of Astro Pi Mission Zero. Mission Zero is a beginners’ coding activity for all young people up to age 19 in ESA member and associate states. Mission Zero is free, can be completed online in an hour, and lets young people send their unique message to the astronauts on board the ISS.

To take part, participants follow our step-by-step guide to write a simple Python program. Their program will display their message to the astronautsvia the Astro Pi’s LED display (complete with ‘sunglasses’). Parents or educators support the participants by signing up for a mentor code to submit the young people’s programs.

All Mission Zero participants receive a certificate showing the exact time and location of the ISS when their program was run — their moment of space history to keep. And this year only, Mission Zero is extra special: participants can also help name the two new Astro Pi units! 

You can watch ESA astronaut Matthias Maurer unpack and assemble the Astro Pi units in microgravity on board the ISS. It’s so exciting to work with the European Space Agency in order to send young people’s code into space. We hope you and your young people will take part in this year’s Astro Pi Challenge.

PS If you want to build your own replica of the Astro Pi units, we’ve got a treat for you soon. Next week, we’ll share a step-by-step how-to guide, including 3D printing files.

The post How did we build the new Astro Pi computers for the International Space Station? appeared first on Raspberry Pi.

Post Syndicated from Olympia Brown original https://www.raspberrypi.org/blog/astro-pi-rocket-launch-21-space-raspberry-pi-computer/

This morning, our two new Astro Pi units launched into space. Actual, real-life space. The new Astro Pi units each consist of a Raspberry Pi computer with a Raspberry Pi High Quality Camera and a host of sensors, all housed inside a special space-ready case that makes the hardware suitable for the International Space Station (ISS).

The journey to space for two special Raspberry Pi computers

Today’s launch is the culmination of a huge piece of work we’ve done for the European Space Agency to get the new Astro Pi units ready to become part of the European Astro Pi Challenge.

After lift-off from Launch Complex 39A at Kennedy Space Center in Florida, the new Astro Pi units are currently travelling on a SpaceX Falcon 9 rocket carrying the Dragon 2 spacecraft, the module atop the rocket. You can watch the launch again here.

Also travelling with our Astro Pi units are food and some Christmas presents for the astronauts on board the ISS, materials for a study of the delivery of cancer drugs; a bioprinter for experiments investigating wound healing; and materials for a study of how detergents work in microgravity.

The Dragon 2 spacecraft will berth with the ISS tomorrow, with NASA astronauts Raja Chari and Tom Marshburn monitoring its arrival. ESA astronaut Matthias Maurer and another colleague will be there to unpack its cargo. You can watch the process of unpacking tomorrow, Wed 22 December, at 8.30am GMT / 9.30am CET. In the new year, Matthias will be switching our Astro Pi units on and getting them ready to run the code written by young people participating in the European Astro Pi Challenge. The new Astro Pi units will replace Astro Pi units Ed and Izzy, which have been on the ISS for 6 years — ever since the very first Astro Pi Challenge with British ESA astronaut Tim Peake in 2015.

We’re looking forward to seeing the amazing experiments this year’s Astro Pi Mission Space Lab teams will perform on the new hardware, and what they’ll discover about life on Earth and in space. We also can’t wait to see what the young people participating in Astro Pi Mission Zero will name the new Astro Pi units!

Building space-ready Astro Pi units

None of us on the team working on the Astro Pi Challenge here at the Foundation are aerospace engineers. While building the new Astro Pi units, we’ve learned so much.

To get the Astro Pis ready to be loaded onto the rocket has been a project of more than three years. That’s because, in addition to manufacturing the Astro Pi units, we also had to ensure they pass the necessary safety and certification process. The official name for this is the Safety Gate process. It’s been set up by ESA and NASA to ensure that any items sent to the ISS are safe to operate on board the station.

For the three separate safety panels the Astro Pi units needed to get through, we put the units through different tests and completed various safety reports. The tests included:

• A vibration test: To make sure the Astro Pi units survive the rigours of the launch, we tested them using the sophisticated rigs at Airbus in Portsmouth. These rigs are capable of simulating the vibrations produced by various different launch vehicles. We needed to test all possible options, because the Astro Pi units didn’t have a confirmed vehicle to travel to the ISS yet.

• A thermal test: To make sure no harm can possibly come to the crew from the Astro Pi units, we needed to check that the touch temperature of the Astro Pi units’ surface is never above 45°C.

• A test for sharp edges: Each Astro Pi unit also needed to be manually inspected by someone wearing a latex glove who carefully feels the case for sharp edges.

• Stringent, military-grade electromagnetic emissions and susceptibility tests: These are required to guarantee that the Astro Pi units won’t interfere with any ISS systems, and that the units themselves are not affected by other equipment on board.

• We built two additional Astro Pi units and sent them to NASA so that they could test that plugging the units into the ISS power grid wouldn’t cause a power overload. 

For almost all of these tests, we created custom software to do things like stress the Astro Pi units’ processors, saturate the network links, and generally make the units work as hard as possible. 

To accompany these safety and test reports, we also had to create the Flight Safety Data Package (FSDP), which contains exact technical information about every component of the Astro Pi hardware, and about all the necessary safety controls to qualify the use of certain materials and safely manage operation of the units. The current FSDP paperwork stands at over 700 pages, which thankfully we haven’t had to actually print out!

Young people’s code will run on the new Astro Pi units next year — is yours on board?

All of this work culminated today in the Astro Pis being launched up into space from Cape Canaveral. And we’re doing all this so that more young people can take part in the European Astro Pi Challenge and send messages to the ISS astronauts using code as part of Mission Zero, or write code for new, ambitious experiments to run on the ISS as part of Mission Space Lab.

Young people can take part in Astro Pi Mission Zero right now! Mission Zero is a beginners’ coding activity for all young people under the age of 19 in ESA member and associate states. It gives them the chance to write code to show their own message to the astronauts on board the ISS using the Astro Pi units. And this time, Mission Zero participants can also vote to name the new Astro Pi units!

To participate, young people follow our step-by-step instructions to write their Mission Zero code. As an adult supporting a young person on Mission Zero, all you need to do is sign up as a mentor to get them a registration code for their Mission Zero entry. Once your young person’s code has run in space, we’ll send you a special certificate for them showing where the ISS, and the Astro Pi computers, were when their code ran.

Inspire a young person to learn about coding and space science today with Astro Pi Mission Zero!

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