...black holes can only draw in material that is relatively close to them. As I mentioned, if the sun became a black hole, the rest of the solar system could continue orbiting around it at the same distance they do now without any danger of falling in. Supermassive black holes imply that at the time of their formation, there was much matter (probably in the form of gas) very nearby that they could access.
Stellar sized black holes are formed when massive stars collapse. We also know that some close binary pairs sometimes merge, or cannibalize each other to become big enough to become black holes. But those big monsters that seem to form at galactic nuclei are a mystery. Its not quite clear yet what the mechanism is.
Nature still has a lot of suprises in store for us.
Space/Science » in reply to Well done, 4.0, except they do seem to suck, a lot, and blow, a little.
That's true, but...
The whole thread (38 posts)
- Why black holes don't suck.
- A 10 y/o plays football against the 49ers.
- Your argument is valid, except for the fact that
- Use or misuse of a word tells us nothing about what the word allegedly describes.
- The galaxy is expanding? I don't think so.
- My reasoning is that
- Objects that close are both red-shifted and blue-shifted...
- But stars and galaxies of stars were formed by gravity? Tthey formed by contraction. I
- Why not use your reasoning, instead,
- My reasoning is that
- Well done, 4.0, except they do seem to suck, a lot, and blow, a little.
- Excellent, thanks n/t