NASA’s space potato

Potatoes on Mars
Peru (Lima)

Spoiler Alert: In The Martian (2015), a stranded astronaut farms potatoes to survive on the Red Planet – and Matt Damon gets this moment: “I colonised Mars. In your face, Neil Armstrong!”

Of course, artistic liberties were taken with the science. “The original potatoes he used were cleaned up, destroying parts that would allow it to grow,” says Joel Ranck from Peru-based International Potato Center (CIP).“Potatoes require dormancy between growing cycles and he was harvesting and replanting – but theoretically it could work.”

The CIP knows its tubers. To prove the real botany behind space agriculture and the potato’s importance as a security crop in times of food scarcity, they are collaborating with NASA to demonstrate that if the tuber can successfully grow in Mars-like conditions for future colonists, potatoes can save lives on earth – today.

Conditions on Mars are extreme with a temperature range between 133°C (-207°F) and 27°C (80°F), CO2 levels nearly four times those here, high UV radiation and low atmospheric pressure. Soil has almost zero organic content, which is critical because plants generally need organic material to grow.

In Damon’s words, the team will “science the shit out of this”. They are introducing extreme ‘Martian’ conditions by adding volcanic soil from Peru’s Pampas de La Joya Desert, which has no life forms at all, and creating a modified dome version of NASA’s CubeSat technology, the miniaturised satellites providing new opportunities for space science.

As the carefully selected drought and heat-tolerant Peruvian potato produces another tuber, scientists will unearth discoveries regarding its resilience to changing climate conditions such as desertification and UV radiation. To build food security awareness, they plan to replicate this at universities worldwide to inspire a new generation of scientists to solve global issues in their backyard.

With 842 million people affected by famine around the globe, the potato’s high vitamin C, iron and zinc levels could put a dent in that number. “It’s ironic the nation that ‘gave’ the potato to the world has to prove it can thrive on another planet in order to draw attention to food security problems here,” adds Ranck.

Editor’s update 23 November 2016:

In 2017 the CIP will begin their CubeSat experiments in a cubicle device able to simulate temperature and air pressures to see how the varieties react to those extremes. “We are very optimistic about achieving a proof of concept for a potato that could accompany a future Mars mission and we are more than certain that we can learn more about the potato’s future in adapting to climate change and ensuring food security and nutrition here on Earth.”

Submitted by

Lisa Goldapple, Editor, Atlas of the Future (21 January 2016)

Project leader

Joel Ranck, Head of Communications, International Potato Center

The potato’s centre of diversity is in the Andean region

CIP maintains the largest collections of potato

The potato is a food security crop

Creative Commons License

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