A.P.O.D.

1. How do black holes create X-rays?

   
   

2. M1: The Incredible Expanding Crab

   Cataloged as M1, the Crab Nebula is the first on

   
   

3. In the upper left corner, surrounded by blue arms and

   
   

4. If one black hole looks strange, what about two?

   
   

5. What’s causing those lines?

   
   

6. How fast can a black hole spin?

   
   

7. Titan: Moon over Saturn

   Like Earth's moon,