comscore Astronauts set to grow flowers in space next year
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Astronauts set to grow flowers in space next year

  • Published: November 17, 2015 5:09 PM IST
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After having a sumptuous feast of “Outredgeous” red romaine lettuce grown in space, astronauts on the International Space Station (ISS) are set to witness flowers blooming on the orbiting laboratory after the New Year. Also Read - Could SpaceX be nearing its end? Elon Musk doesn’t deny the possibility

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NASA astronaut Kjell Lindgren has activated the “Veggie” plant growth system and its rooting “pillows” containing Zinnia seeds on the space station. Zinnia is a genus of plants of the sunflower tribe within the daisy family. It is the first time that a flowering crop experiment will be grown on the orbiting laboratory, NASA said in a statement. Also Read - NASA’s Ingenuity Mars Helicopter uses same chip as Samsung Galaxy S5, OnePlus One

Growing zinnias in orbit will help provide precursory information about other flowering plants that could be grown in space.

“Growing a flowering crop is more challenging than growing a vegetative crop such as lettuce,” said Gioia Massa, NASA Kennedy Space Center payload scientist for Veggie. “Lighting and other environmental parameters are more critical,” Massa added.

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Lindgren will turn on the red, blue and green LED lights, activate the water and nutrient system to “Veggie”, and monitor the plant growth. The zinnias will grow for 60 days, which is twice as long as the first and second crop of “Outredgeous” red romaine lettuce that grew on the space station. During the growth cycle, the LED lights will be on for 10 hours and off for 14 hours in order to stimulate the plants to flower.

“Growing the zinnia plants will help advance our knowledge of how plants flower in the Veggie growth system, and will enable fruiting plants like tomatoes to be grown and eaten in space using Veggie as the in-orbit garden,” explained Trent Smith, “Veggie” program manager at Kennedy.

Researchers also hope to gather good data regarding long duration seed stow and germination, whether pollen could be an issue, and the impact on crew morale. Growing tomato plants on the space station is planned for 2017. Earlier, Expedition 44 crew members, including NASA astronaut Scott Kelly, cherished the fruits of their labour after they harvested a crop of “Outredgeous” red romaine lettuce from the “veggie plant” growth system on the orbiting laboratory for 33 days.

The astronauts cleaned the leafy greens with citric acid-based, food safe sanitizing wipes before consuming them.

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“Having fresh food like these available in space could have a positive impact on people’s moods and also could provide some protection against radiation in space,” said Dr Ray Wheeler, head of advanced life support activities at NASA s Kennedy Space Centre in Florida.

The Veggie unit can also be used by astronauts for recreational gardening activities during deeper space missions including Mars.

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  • Published Date: November 17, 2015 5:09 PM IST



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