When the space shuttles Discovery and Atlantis blasted off in the direction of the International Space Station (ISS) this year, passengers of a more botanical variety vastly outnumbered the seven astronauts on board. Secured in small seed cassettes, some 1600 seeds of the cress species, Arabidopsis thaliana, took the flight for a research project designed to help tease out the tropic influences of gravity and light on plant growth, while perhaps helping to find a way to grow crops for long missions to the Moon and Mars.
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Arabidopsis in space
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