Frequently Asked Questions
Questions about: Exotic including Black Holes, Dark Matter, Gamma Ray Bursts, and Gravitational Lensing
- What is a black hole?
- How is a black hole created?
- Do all stars become black holes?
- Since light has no mass, how can it be trapped by the gravitational pull of a black hole?
- What does a black hole look like?
- What is escape velocity?
- Is a black hole a giant cosmic vacuum cleaner?
- How many types of black holes are there?
- When were black holes first theorized?
- What evidence do we have for the existence of black holes?
- How does the Hubble Space Telescope search for black holes?
- What are gravitational lenses and how do they work?