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Zinnia plant in bloom aboard an Earth orbiting space station. The growth of plants in outer space has elicited much scientific interest. [1] In the late 20th and early 21st century, plants were often taken into space in low Earth orbit to be grown in a weightless but pressurized controlled environment, sometimes called space gardens. [1]
The study of plant response in space environments is another subject of astrobotany research. In space, plants encounter unique environmental stressors not found on Earth including microgravity, ionizing radiation, and oxidative stress. [23] Experiments have shown that these stressors cause genetic alterations in plant metabolism pathways.
This being said, many plants grown in a space flight environment have been significantly smaller than those grown on Earth's surface and grew at a slower rate. [ 10 ] In addition to the varying effects of gravity, plants grown on the surface of Mars will be exposed to much higher levels of radiation than on Earth unless protected.
A Veggie module weighs less than 8 kg (18 lb) and uses 90 watts. [7] It consists of three parts: a lighting system, a bellows enclosure, and a reservoir. [8] The lighting system regulates the amount and intensity of light plants receive, the bellows enclosure keeps the environment inside the unit separate from its surroundings, and the reservoir connects to plant pillows where the seeds grow.
Plants had their first encounters with Earth's orbit back in 1960 during two separate missions, namely Sputnik 4 and Discoverer 17 (for a comprehensive review of plant growth in space during the first 30 years, refer to Halstead and Scott, 1990). [22]
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Because it tends to grow upright, Hancock notes, the majesty palm doesn’t take up as much space as some of the other large houseplant trees. Size: 8–12 feet tall Growing conditions: Bright ...
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