anti-matter

[blackhole123]

does it exist? if so where?

[insane_alien]

It exists. it doesn't usually exist for long since this is a matter universe but some is made in the sun, some particles are thought to exist in interstellar space and small quantities are made here on earth in cyclotrons.

 

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[swansont]

Your body makes antimatter on a regular basis. The decay of C-14 and K-40, for example, produce it.