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Astrophysics and Cosmology: Key Concepts and Theories Exam questions and answers

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Astrophysics and Cosmology: Key Concepts and Theories Exam questions and answers What two major characteristics of stars do we use to sort them? - Luminosity and Temperature. What is the current estimate of the age of the universe according to modern astrophysics? - 13.8 billion years. Which planet is not a gas giant? - Mars. Is it possible to orbit a black hole? - True. What force caused the solar nebula to collapse and form the Sun and planets? - Grav

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Astrophysics and Cosmology: Key Concepts and Theories Exam questions and answers

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