Astronomically Speaking... - With Ben Bromley - ATBS #41
This week we look to the night skies with Theoretical Astronomer Ben Bromley. Ben is a professor at the University of Utah working in theoretical and computational astrophysics, with focus on planet formation, galactic dynamics, as well as some relativistic astrophysics Today we discuss the unknown aspects of our universe including our local solar system, dark matter, and dark energy.
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Program Notes:
0:00 Intro and background
2:00 Ben begins about 100 years ago - What did we know?
What are the fuzz balls ? Galaxies are getting further & further apart. We live in a sea of galaxies which is expanding in space and time. What?
Big Bang.
12:00 Three Pillars of Cosmology
18:00 More on the hot big bang
25:00 Fritz Zwicky - Dark Matter
34:00 The Bullet Cluster
38:00 Dark Energy
47:00 We don’t know, what we don’t know.
References:
Ben Bromley - https://faculty.utah.edu/u0095165-Ben_Bromley/hm/index.hml
Hubble - https://en.wikipedia.org/wiki/Hubble_Space_Telescope
Margaret Geller - https://en.wikipedia.org/wiki/Margaret_Geller
Large Scale Structures - https://en.wikipedia.org/wiki/Observable_universe#Large-scale_structure
Fritz Zwicky - https://en.wikipedia.org/wiki/Fritz_Zwicky
Vera Rubin - https://en.wikipedia.org/wiki/Vera_Rubin
Bullet Cluster - https://en.wikipedia.org/wiki/Bullet_Cluster
NASA Imiges - https://www.nasa.gov/multimedia/imagegallery/index.html
Nasa’s Cassini Mission (Images) - https://www.nasa.gov/mission_pages/cassini/images/index.html
Pluto Charon Binary - https://www.space.com/32032-charon.html
Dark Energy Survey - https://www.darkenergysurvey.org/the-des-project/overview/
