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Which of these did the June 1908 impact event in Siberia and the 2013 event in the Russian city of Chelyabinsk have in common?
Q3: Credit for the discovery of Neptune is
Q5: Of these which is the closest to
Q11: Which of the following has the longest
Q13: A large body in space that consistently
Q15: Which of the following is evidence for
Q21: Astronomers call the vast, rotating cloud of
Q27: In order for a cold atom of
Q33: The south celestial pole and the north
Q57: How fast do electro-magnetic waves travel?<br>A) at
Q70: Children from which of the following backgrounds