Cosmology – Page 9 – National Radio Astronomy Observatory

Did the Big Bang Happen in a Pre-Existing Universe?

Question: Is it possible that the big bang occurred in a pre-existing universe? if not, how do we know? …

Question: Isn’t it possible that the answer to the increasing speed of the expansion of the Universe is that…

Question: It is a challenging research topics to search how supermassive black holes formed at the early epoch. I…

Question: If the universe is expanding and all galaxies are moving away from each other, how is it possible…

Question: Hi! I am from Salt Lake City Utah. I’m in the sixth grade and in middle school. Middle…

Question: I am not able to understand one thing, when we say we saw a star exploded billions of…

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