We know that dark matter must exist in galaxies. If not, many of the stars in a galaxy would _____.
Question:
We know that dark matter must exist in galaxies. If not, many of the stars in a galaxy would _____.
Existence of Dark Matter
The Bigbang Theory explains the evolution of space from the explosion that resulted in a continuous uniform expansion of space. The explosion involved a sudden increase in the expansion of spacetime with no forces involved. This expansion generated matter in two different forms: visible matter and invisible matter. This invisible matter is thought to be six times more massive than the visible matter and is known as the dark matter.
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View this answer- Scientists attributed the acceleration of the universe's expansion to the existence of dark matter. This type of matter does not recognize nuclear and...
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Chapter 4 / Lesson 9Dark matter refers to materials and substances in the universe's mass that scientists are unable to directly observe. Learn about dark matter and gravitational lensing. Explore how communities are held together, and review gravity, dark matter, and clusters to understand dark matter from the perspective of gravitational lensing.