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tsuomela : cosmology   26

Why Are Physicists Hating On Philosophy? : 13.7: Cosmos And Culture : NPR
"Its one thing for physicists exploring carbon nanotubes to say they have no use for philosophy. Their work lives or dies by experimental data that can be collected tomorrow. But over the last few decades, cosmology and foundational physics have become dominated by ideas that that appear to take a page from science fiction and, more importantly, remain firmly untethered to data."
physics  cosmology  philosophy  empirical 
may 2012 by tsuomela
BREAKTHROUGH OF THE YEAR:ASTRONOMY: Cosmic Motion Revealed -- Glanz 282 (5397): 2156 -- Science
1998 Science magazine article on the 'breakthrough of the year' - the confirmation of an expanding universe and initial speculations about dark matter and dark energy.
1998  astronomy  dark-matter  dark-energy  history  cosmology  astrophysics  supernova 
august 2010 by tsuomela
What is Dark Matter? : Starts With A Bang
Summary of dark matter properties: 1. It isn't in dense clumps. 2. It doesn't interact with itself (other than gravity) 3. Dark haloes form very early.
physics  astronomy  astrophysics  cosmology  dark-matter 
october 2009 by tsuomela
The Neighborhood: Our Place in Space
Our Place In Space. An inward swoop of perspectives, from the intergalactic void through the Milky Way down to Earth. Extensive content on extrasolar planetary systems.
astronomy  cosmology  science  space  photos  scale  maps 
september 2009 by tsuomela
[0903.4849] Dark Matter Candidates
An overview is given of various dark matter candidates. Among the many suggestions given in the literature, axions, inert Higgs doublet, sterile neutrinos, supersymmetric particles and Kaluza-Klein particles are discussed.
astronomy  astrophysics  cosmology  physics  science 
april 2009 by tsuomela
[astro-ph/0511440] Varying Constants
We review properties of theories for the variation of the gravitation and fine structure 'constants'. We highlight some general features of the cosmological models that exist in these theories with reference to recent quasar data that are consistent with time-variation in the fine structure 'constant' since a redshift of 3.5. The behaviour of a simple class of varying-alpha cosmologies is outlined in the light of all the observational constraints.
cosmology  astronomy  astrophysics  physics  paper 
january 2009 by tsuomela

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