The cosmic microwave background (CMB) radiation is...
A) light from distant stars.
B) radiation from pulsars.
C) light from gravitational lenses.
D) radiation from the birth of the Universe.
E) energy emitted by black holes at the centers of the nearby galaxies.
Correct Answer:
Verified
Q18: The light travel time distance to the
Q19: If the Universe had _, that would
Q20: Olbers paradox asks...
A) Why isn't the night
Q21: The "light travel time distance" measures...
A) the
Q22: The Big Bang refers to...
A) the creation
Q24: The cosmic background radiation has a low
Q25: The _ is determined by the distance
Q26: Recent measurements of the variations of the
Q27: If the universe had _, that would
Q28: What is the cosmic horizon?
A) the place
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