Scientists: Dark Matter Doesn't Exist
Galaxies in our universe don't contain enough mass to stick together. In fact, they don't contain even close to the amount of mass that the need for gravity to hold them together. Scientists believe that an elusive substance known as dark matter makes up for the 70% of missing mass in galaxies. However, dark matter is never been observed and we may never be able to observe it's effects.
What are left with is that we know that something else is involved in holding galaxies together because of our observations, but we don't know what it is. Canadian Scientists say that we don't need to invoke a magic particle to explain this situation, we just need to modify our understanding of gravity. John Moffat, an astronomer at the University of Waterloo in Canada, and Joel Brownstein, his graduate student, say that their Modified Gravity (MOG) theory explains how galaxies are sticking together without invoking a magic particle.
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Takeaways
- What is dark matter?
- Does dark matter really exist?
- Gravity: constant or flexible?
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