Space & Science

The dark matter hypothesis isn’t perfect, but the alternatives are worse

You might not be a fan of dark matter, the hypothetical particle that makes up most of the mass of the universe. And it’s true that the dark matter hypothesis has its flaws – and, of course, we haven’t found dark matter particles yet. But the truth is that the alternatives are much worse.

The universe is full of unexplained mysteries (that’s what keeps astronomers and astrophysicists happy), and many of those mysteries surround gravity. As we watch stars orbit around the centers of their galaxies, we find that they are moving far too quickly considering the amount of visible matter that can hold them in those orbits with its gravity.



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