Not unless you count putting people on the moon. The truth is, NASA hasn’t made any efforts to visit other plants except by unmanned robotic space probes. We have, however, attempted to study the life in space by sending fruit flies, mice, monkeys, dogs, rats, cats, spiders, frogs, and more into space. Initially this was so that we could see how space flight might affect the human body to better understand how to protect astronauts in space.
No, but we have sent some other interesting things into outer space, specifically evidence of life here on earth. Attached to the Voyager spacecraft are musical recordings from Earth, greetings, and scenes from our planet.
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