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Earth’s Place in Space Readers and Passages
The Milky Way - Our Galactic Home
The Milky Way is a massive spiral galaxy containing billions of stars, including our Sun. It feature...
RI.4.4RI.4.2
Andromeda - Our Galactic Neighbor
Andromeda, also known as Messier 31, is a massive spiral galaxy with about one trillion stars, locat...
RI.4.4RI.4.2