ELI5: Explain Like I'm 5

Fruit flies in space

Fruit flies are a type of small insect. Scientists are sometimes interested in taking fruit flies into space for experiments. They are a good choice because they are small, which makes them easier to send into space, and they can also reproduce quickly, so they can make new generations of fruit flies while they're in space. Scientists can use fruit flies to study how living in space affects living things, so they can help us better understand how living in space might affect humans.
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