Wednesday, January 9, 2013
Dwarf spheroidal galaxies
Dwarf spheroidal galaxies - a fascinating topic for a first course in philosophy of science.
The options that remain open as of January 2013 are remarkable : dark matter, revised Newtonian laws, …
Related : the galactic rotation problem; formation of barred-spiral galaxies
Web astronomy of related interest : the Sloan digital survey's colliding galaxies as categorized by the GalaxyZoo social astronomy image project.
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