CXC Home | Search | Help | Image Use Policy | Latest Images | Privacy | Accessibility | Glossary | Q&A
How to play: First check which player you are, then click the point amount of the question you want to answer. Good Luck!
Black Holes | Cosmic Distance | X-ray Vision | Elementary, My Dear | All Stars |
---|---|---|---|---|
Need some help? Try these useful resources:
- Black Hole Field Guide, Black Hole Q&A
- Cosmic Distance
- History of X-ray Astronomy, Major Milestones in X-ray Astronomy: html | flash
- Stars & Star Clusters Field Guide, Stellar Evolution Field Guide
- Chandra Glossary