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91.
According to the Big Bang Theory, the universe began as a singularity approximately how many years ago?
Explanation:
92.
What is the name of the cosmic microwave radiation that permeates the universe and is considered evidence of the Big Bang?
Explanation:
93.
Which famous astronomer is known for formulating the three laws of planetary motion, which helped lay the groundwork for modern cosmology?
Explanation:
94.
Which term describes the idea that the universe is expanding and that galaxies are moving away from each other?
Explanation:
95.
What is the name of the proposed force or energy responsible for the observed accelerated expansion of the universe?
Explanation:
96.
What is the term for the hypothetical point in the universe where gravitational forces cause matter to collapse to an infinitely dense state?
Explanation:
97.
Which type of galaxies have a flattened, disk-like shape and contain both old and young stars?
Explanation:
98.
What is the term for the process by which light from a distant object is stretched and shifted toward the red end of the spectrum due to the expansion of the universe?
Explanation:
99.
What is the estimated age of the universe according to the most widely accepted cosmological model?
Explanation:
100.
What is the term for the process by which heavy elements are formed through nuclear reactions in stars?