Space ExplorationUnpublished

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A young scientist's guide to stellar galaxies, including how they interact with other elements in the universe and emphasizing how questions and observations can lead to discovery.

Take a trip around our solar system, Find out how Pluto was named, See amazing snapshots from space & Learn more than forty fun facts about our universe Level 2 includes longer sentences with richer vocabulary, type set line to line to aid readability, varied photographic...