Life on Earth-and Beyond (U1W2)

Front

astrobiologists

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scientists who study life in the universe

Front

microbes

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the smallest living things

Front

colony

Back

a group of animals living in one place

Front

sensors

Back

devices that detect changes in light, moisture, or other physical conditions

Front

radiation

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dangerous energy rays that cannot be seen

Front

rovers

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vehicles used to explore a planet's surface