Eli5 what is anti matter?
In: 158
No one knows.
But astro-physists noticed that some stars in the outskirts of galaxies are moving way, way faster than they should be, given the forces of gravity acting upon them by regular matter which is detectable. They therefore theorized that there must be other matter…a lot of it…which they’ve so far been unable to detect, but which is causing gravitational pull on these unexplainably fast moving stars.
Edit…all that is wrong. I was thinking of dark matter.
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