Park University

cluster spiral supernova giant runaway refrigerator runaway greenhouse coronae tharsis bulge caloris scarps maria regolith greenhouse extinction tectonic hii nebulae cepheids parallax binary luminosity spectral flares prominences sunspots neutrino seti fermi drake isotropy energy microwave olber emission homogeneous isotropic cosmological merger quasar radio seyfert irregular elliptical globular halo disk bulge resolution angular interferometry cassegrain schwarzschild degeneracy nucleosynthesis sidereal copernicus kepler galileo newton oort cloud pluto charon eris ceres trojan jupiter saturn uranus neptune terrestrial callisto roche limit shepherding moons spectroscopy photons thermal right ascension declination io europa ganymede line solar frost nebula gas