Food made in space - 6 Minute English

TL;DR

Plants can grow in space, aiding Earth agriculture.

Transcript

Hello. This is 6 Minute English from BBC Learning English. I'm Neil. And I'm Georgina. Last November Nasa launched a very unusual home delivery service - a rocket carrying four tonnes of supplies to the ISS - the International Space Station. Among the scientific equipment were twelve bottles of red wine from the famous Bordeaux region of France. Th... Read More

Key Insights

• NASA launched a unique delivery to the ISS, including Bordeaux wine, to explore space agriculture's potential benefits for Earth.
• Growing plants in space can lead to more productive, climate-resistant crops on Earth, enhancing food security.
• Plants can grow without natural light using LED lights, which are tuned to specific wavelengths for optimal growth.
• Microgravity poses challenges for plant growth in space, but plants adapt through plasticity, changing their biological structure.
• Plants utilize their genes to adapt to space conditions, making them more resilient and genetically stronger upon returning to Earth.
• The first food grown in space was lettuce, demonstrating the feasibility of cultivating crops in microgravity environments.
• LED lights provide the necessary energy for photosynthesis in space, allowing plants to absorb every photon efficiently.
• Understanding plant adaptation in space can offer solutions for agriculture on Earth, particularly in the face of climate change.

Questions & Answers

Q: What was the purpose of sending wine to the ISS?

The wine was sent to the ISS to study the effects of microgravity on its organic composition. This research aims to provide insights into how space conditions affect food and drink production, potentially offering solutions for growing more resilient crops on Earth in response to climate change.

Q: How do plants grow in space without natural light?

Plants in space grow without natural light by using LED lights, which are tuned to specific wavelengths. This method allows plants to absorb every photon efficiently, optimizing photosynthesis. By controlling the light's wavelength, scientists can influence plant growth, shape, size, and even flavor in a microgravity environment.

Q: What is microgravity and how does it affect plant growth?

Microgravity is the weaker gravitational pull in space, making objects appear weightless and float. It affects plant growth by removing the usual gravitational cues that guide root and shoot orientation. However, plants adapt through plasticity, altering their genes and biological structure to survive and even thrive in these conditions.

Q: What is plasticity in plants?

Plasticity in plants refers to their ability to adapt to changing environments by altering their biological structure. This adaptability allows plants to survive in diverse conditions, including space, by turning on or off specific genes. In space, plasticity helps plants cope with microgravity, making them more robust and resilient upon returning to Earth.

Q: Why do plants appear black when grown under LED lights in space?

Plants appear black when grown under LED lights in space because they absorb every photon of light. The LED lights are tuned to specific wavelengths that optimize photosynthesis, allowing plants to utilize all the light energy they receive. This efficient absorption means no light is reflected, giving the plants a black appearance.

Q: What was the first food grown in space?

The first food grown in space was lettuce. It was cultivated over fifteen months on the International Space Station (ISS) and later consumed in the first-ever space salad. This achievement demonstrated the feasibility of growing edible crops in a microgravity environment, paving the way for future space agriculture endeavors.

Q: How do genes help plants adapt to space conditions?

Genes in plants help them adapt to space conditions by altering their biological structure in response to environmental changes. This genetic adaptability, known as plasticity, allows plants to survive and grow in microgravity by turning on or off specific genes. This process makes them more resilient and genetically stronger upon returning to Earth.

Q: What potential benefits does space agriculture offer for Earth?

Space agriculture offers potential benefits for Earth by developing crops that are more productive and resistant to climate change. By understanding how plants adapt and grow in space, scientists can apply these insights to improve agricultural practices on Earth, enhancing food security and sustainability in the face of environmental challenges.

Summary & Key Takeaways

• NASA's mission included sending Bordeaux wine to the ISS to study space agriculture's potential benefits for Earth's crops. Growing plants in space can lead to more resilient, productive crops that can better withstand climate change.

• Plants can grow without natural light in space by using LED lights tuned to specific wavelengths. This method allows plants to absorb every photon, making them appear black and optimizing their growth in a microgravity environment.

• Despite the challenges of microgravity, plants adapt through plasticity by altering their biological structure. This adaptation makes them genetically stronger and more resilient to less stressful conditions when they return to Earth, benefiting agriculture.