Exam (elaborations)
GIZMOS 2.08 Lab Questions | Student Exploration: Big Bang Theory ;; Hubble’s Law 2021
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Gizmo Warm-up In 1912, an astronomer named Henrietta Swan Leavitt studied a class of stars called Cepheid variables. These stars change from bright to dim to bright again. Her discoveries led to a method of measuring distances to other galaxies and eventually helped to support the Big Bang th...
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