US Astronaut Scott Kelly Shares Picture of the First Flower Grown in Space

By: | January 25th, 2016

Scott Kelly/NASA

Bloom baby!

A zinnia plant has officially flowered on the International Space Station, marking the first flower grown in space, and we have a tweet from US astronaut Scott Kelly to prove it.

According to NASA, zinnias were chosen to “help scientists understand how plants flower and grow in microgravity.”

We’ve seen lettuce grown in space and even astronauts eating the space lettuce, but never a flower that has bloomed.

“The zinnia plant is very different from lettuce,” Trent Smith, project manager of the ISS’s “Veggie” plant growth facility, told the Nasa blog.

“It is more sensitive to environmental parameters and light characteristics. It has a longer growth duration between 60 and 80 days.”

“Thus, it is a more difficult plant to grow, and allowing it to flower, along with the longer growth duration, makes it a good precursor to a tomato plant.”

“Plants can indeed enhance long-duration missions in isolated, confined, and extreme environments – environments that are artificial and deprived of nature,” Alexandra Whitmire, of the NASA Human Research Program, added.

While not all crew members may enjoy taking care of plants, for many, having this option is beneficial.

“In future missions, the importance of plants will likely increase given the crews’ limited connection to Earth. Studies from other isolated and confined environments, such as Antarctic stations, demonstrate the importance of plants in confinement, and how much more salient fresh food becomes psychologically, when there is little stimuli around.”

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