Lettuce grown in space is ‘delicious’ and safe to eat, NASA says
'I think plants are going to be very important for the crew diet in the future,' says NASA scientist
Your support helps us to tell the story
From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.
At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.
The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.
Your support makes all the difference.The first ever space-grown lettuce is as safe to eat as lettuce grown on Earth, Nasa astronauts have reported – and in some cases is even more nutritious.
Space-grown lettuces space-grown was similar in composition to Earth-grown control samples, while some plants were even richer in a number of elements, including potassium, sodium and zinc.
The experiment involved crops being grown in individual sealed units of ceramic soil under red LED lighting for 33 to 56 days.
Gio Massa, who led the lettuce-growing project, said: “I think plants are going to be very important for the crew diet in the future and if we ever want to be Earth-independent.
“If you store packaged food for a long duration the quality, flavour and nutritional quality decrease, the vitamins degrade,” she said. “We can’t guarantee that they’re going to get enough nutrition right now.”
She added: “There may also be psychological benefits of growing plants and looking after plants.”
The scientists tested both lettuces in similar environments and were “surprised” to find how nutritious space grown lettuce was.
Although the lettuce did have higher levels of bacteria, the crops were not found to carry any dangerous bacteria such as E.coli or salmonella.
In light of the findings, researchers have sent kale and cabbage seeds to the International Space Station to see if they will produce similar results.
At present, astronauts receive their food through regular rocket shipments from Earth, but when they go on longer missions the nutrients in the food breaks down.
It is believed that the ability to successfully grow food in space could be crucial for long-duration interstellar missions, such as Nasa's first crewed mission to Mars - scheduled to depart within the next decade.
Additional reporting by Press Association
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies
Comments