NASA Cosmologist in the House: Jonathan Gardner
- public talk: A Scientific Revolution: the Hubble and James Webb Space Telescopes
- more technical: The James Webb Space Telescope
Galaxies
Some History
- What he heck are these nebulae? are they like these nebulae?
- Curtis-Shapley debate (1920)
- Hubble (the man) discovers a cephied in M31
- Hubble (the telescope): Cephieds in M100
the recordholder: NGC 4603
Galaxy Rotation Curves
- Data: M33
Some examples of typical rotation curves - Interpretation
Galaxy Demographics
- sprial: face-on, edge-on
- elliptical
- Irregular: LMC, SMC
Evidence for Interaction
- Cannibalism: the hungry Milky Way
- globular cluster Palomar 5
- the Magellanic stream
- Sagittarius dwarf galaxy
- Mergers
- Starbursts
