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What would happen to stars near the outer edge of a galaxy if all of the dark matter could be instantly removed?
Q13: The graph plots the escape velocity of
Q15: Jupiter radiates less heat than it absorbs
Q39: What would happen if the nuclear reactions
Q46: The only spacecraft to fly by Uranus
Q49: Which of the following statements best describes
Q57: The planets all lie in nearly the
Q65: Stars of one solar mass produce their
Q69: What is quintessence?<br>A) the force that led
Q76: The Earth is the terrestrial planet with
Q91: What distance method is used to determine