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Galaxies are huge collections of stars, gas and dust, and mysterious dark matter. Galaxies are thousands of light years across and contain billions of stars. We are in the Milky Way galaxy ...Read more
7/8 Dutch physicist and astronomer Christian Huygens died on this date in 1695 Details
7/14 Florence Bascom, an American geologist, was born on this date in 1862 Details
7/15 Birthday of Jocelyn Bell Burnell, a British astronomer, born in 1943 Details