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Why do researchers believe that asteroids in the asteroid belt are primal rocks that did not merge into a planet?
Q2: What piece of evidence suggests that the
Q4: The Tharsis Bulge on Mars is roughly
Q23: Concerning our solar nebula theory,the presence of
Q39: What is unusual about the motion of
Q48: The radial velocity method is less likely
Q60: Astronomers have determined the detailed composition of
Q80: Type M stars evolve to the main
Q86: Amateur astronomers have contributed to the understanding
Q89: The type of asteroid that would be
Q96: Neutral hydrogen is most obvious in the