In 1992, COBE observations revealed
A) there are small ripples in the microwave background, the seeds of galaxies.
B) that the universe had less than the critical density, so was open.
C) the dark matter in the universe is normal (baryonic), so the universe is closed.
D) the existence of dark energy.
E) the microwave background radiation is not isotropic, but centered on Virgo.
Question 2
Based on his star counts, Herschel placed the Sun in the ________ of our Galaxy.
Fill in the blank(s) with correct word
A small ecosystem.
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