Introduction
Where are we now in understanding of physics
- Newton’s Laws describe motion of matter EXCEPT
- Quantum Mechanics needed for the very small
- Special Relativity needed for speeds near c
- General Relativity needed for strong gravitational fields
Our Universe
- What do we see with the naked eye?
- Sun, Moon, Planets, Stars (in our galaxy), Supernovae
- What do we see with optical telescopes, other instruments?
- Other Galaxies, Pulsars, ……...
- Objects in our universe
- Stars, Collapsed Neutron Stars (pulsars), Black Holes, ...
- Cosmology
- Evidence for the “Big Bang”
- Will the Universe keep expanding, collapse in the “Big Crunch” , or slow to a stop?