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Q11: This experimental design allows for testing<br>A) the
Q16: Supernova 1987A was the first supernova observed
Q25: Why can we say a star spends
Q38: The _function of debriefing is fulfilled when
Q54: Galileo's observations of the entire phase cycle
Q56: What happens to light passing through even
Q70: How does the mass of the protostar
Q81: Emission nebulae occur only near stars that
Q113: How old is the Galaxy? How do
Q152: We find most stars still on the