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The heaviest element created in the big bang, in tiny amounts, is _______________.
Q19: A white dwarf generates energy through _.<br>A)
Q23: Is dark matter important in other galaxies
Q24: A galaxy with randomly oriented elongated star
Q25: Any compact object with a mass greater
Q37: Saturn's largest satellite is _.
Q54: The moons of Uranus have been named
Q55: Why do astronomers conclude that quasars are
Q57: Mantle material behaves like a gas.
Q64: Gravitational _ can be used to detect
Q68: Penzias and Wilson detected microwave radiation because