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Copernicus's model of the solar system gave much better predictions than the model of Ptolemy.
Q14: Based on DNA studies, it seems that
Q23: Which of the following is not evidence
Q25: Outside the frost line, planetesimals could form
Q49: We can't detect stellar parallax with naked-
Q50: How do we know that there can
Q64: The great contribution of Tycho Brahe was
Q65: At which lunar phase(s)are tides most pronounced
Q76: Observational Tests: Observations are the ultimate test
Q99: In which of the following cases would
Q105: It is possible to see the third-