In astronomy, a dense core is a region in the process of forming a
A) star.
B) black hole.
C) white dwarf.
D) galactic bulge.
Correct Answer:
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Q28: Which of these have been detected around
Q29: Suppose a dense core forms out of
Q30: What was the first direct evidence that
Q31: A gas and dust cloud that is
Q32: MOST protostars are surrounded by
A) gas giants.
B)
Q34: Young stars are sometimes observed to have
Q35: Strong evidence for the existence of planetary
Q36: An asteroid belt has been discovered around
Q37: An astronomer discovers a protoplanetary disk with
Q38: Asteroids have been detected around nearby stars
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