Summary II
Strange Objects in our Universe
Neutron Stars - like a giant nucleus
- Form “Pulsars”
- Very small - mass of sun in radius like Champaign-Urbana
- Rotate thousands of times per second
- Radiate millions of times more energy than the sun from a “hot spot”
Black Holes
- Matter that collapses upon itself
- So much mass that space-time curves on itself - nothing can escape
- Consumes gasses from nearby stars
Invisible Mass
- What is it?
- How do we detect it?
- From the motions of visible objects and the laws of physics!