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The Mystery of Dark Matter
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Dark matter is one of the greatest mysteries in modern science. Although it cannot be seen or touched, scientists believe it makes up about 27% of the universe. Unlike ordinary matter, dark matter does not emit, absorb, or reflect light, which makes it invisible. Scientists first began to suspect its existence when they noticed that galaxies were rotating faster than expected. The gravity from visible matter alone could not explain this motion. They concluded that some unseen massâdark matterâmust be present to account for the extra gravitational pull. Researchers are now trying to detect dark matter directly using highly sensitive instruments deep underground. Understanding dark matter could help us learn more about the structure and future of the universe, but many questions remain unanswered.
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Why can't we see dark matter?
What made scientists first believe dark matter exists?
How are researchers trying to detect dark matter?
Why is dark matter important to understand?
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