: I am doing some research on black hoes for a sc-fi story : I am going to write. I have found some info but it doesn't tell me exactly : what i need to know. Is it possibele to turn a living star into : a black hole? The reason i need to knwo is because the evil race in my story : will have a weapon that when shot at a star will turn the star into a black hole. : If this is not possible, the I will come up with something else that is.

The only you can turn a planet into a black hole is if you add enough matter to it and make the gravity so great that it colapses in on its own weight. To do this to an earth sized planet (and remember if you make your planet any bigger you will have to have very strong people to be able to stand up in the increased gravity) you will have to increase its size by several billion times (You can get teh exact sizes from an encyclopaedia). However, you could have a weapon that rips a small through to another dimension and the whole then becomes a black whole, sucking the planet into it?