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CHOOSING A UNIVERSE
LOOKING WITH NEW EYES
5 other sections not shown
apparent Apparent magnitude astronomers atoms background radiation big bang models black body black hole brightness centimetre centre Chapter clusters of galaxies collapse cosmic cosmological models cosmologists cosmology curve deceleration parameter degree background Dennis Sciama described distance earth effect Einstein's electrons emitted energy event horizon evidence existence expansion expect fact finite further galactic gravitational field hadrons helium Hermann Bondi hot big bang Hoyle Hubble Hubble's hydrogen idea inside isotropic light look Mach's principle Martin Rees material matter measure million motion Narlikar nebulae neutron star nuclear nuclei objects observations Olbers optical particles Penrose picture possible predictions present problem protons pulsars quasars question radio galaxies radio sources radius red-shift relativity result rotation singularity situation solar masses space space-time spectrum steady state model steady state theory stellar supernova surface telescope temperature tion uniform universe velocity wavelengths waves white dwarf X-ray