The most popular theory of our universe's origin centers on a cosmic cataclysm unmatched in all of history—the big bang.
Explanation:
This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions, as if they had all been propelled by an ancient explosive force.
Answers & Comments
Answer:
The most popular theory of our universe's origin centers on a cosmic cataclysm unmatched in all of history—the big bang.
Explanation:
This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions, as if they had all been propelled by an ancient explosive force.