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The Compton GRO was the first telescope used for our exploration of high- energy astronomy.
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Q44: In the Doppler effect, a redshift of
Q54: The Earth's hotter, inner core is liquid
Q56: The Zeeman effect reveals the presence of
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Q92: The atmospheric gases primarily responsible for our
Q124: Running water continues to be the major
Q131: The epoch explains the isotropy of the
Q139: Why is the Moon heavily cratered but