What is the latest research on the existence of Dark Matter? Does the latest research support, refute, or modify the supposed existence of Dark Matter?

What is the latest research on the existence of Dark Matter? Does the latest research support, refute, or modify the supposed existence of Dark Matter?
-Answer the Question: What is the latest research on the existence of dark matter? Does the latest research support, refute, or modify the supposed existence of Dark Matter?
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-Use SCIENTIFIC PAPER FORMAT (Title, Abstract, Introduction, Methods, Results, Discussion/Conclusion)
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