What would happen if I fed animatter into a black hole? Could this be a treatment to get rid of black holes?

No. Antimatter has positive mass just like ordinary matter, so the black hole would merely get larger and heavier.

Whatever fireworks happened inside the hole, if the anitmatter met up with ordinary matter there, would have no effect on the hole's total matter-and-energy content or, therefore, its mass.

— Alan MacRobert

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Black Hole FAQ

About Alan MacRobert

Alan M. MacRobert became an avid Sky & Telescope subscriber in 1966 at age 14, joined the editorial staff in 1982, and is now a senior contributing editor, semi-retired. He played a role in practically every part of the magazine and the company's other products for more than a generation, both on the amateur-observing side and the science-reporting side. In 1994 a book collection of his observing how-tos and telescopic sky tours was published as Star Hopping for Backyard Astronomers. He has produced This Week's Sky at a Glance online every week since 1989.

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