In the Center of Immensities |
Contents
The Dilemma of Mankind | 1 |
The Evolution of Planetary Systems | 7 |
Investigation of the Solar System | 26 |
Copyright | |
4 other sections not shown
Common terms and phrases
astronomers atmosphere atomic beginning believed billion years ago body Boötes carbon dioxide centimeters century Cepheid Cepheid variables cloud clusters concept condition contemporary Copernican Copernicus cosmological density discovery distance Earth emerged epoch evidence evolution evolutionary existence expansion extragalactic force formed Galileo globular clusters gravitational heliocentric helium Herschel Hubble human hydrogen idea immense implied infinite interstellar cloud Jupiter knowledge launched living organisms magnitude Mars mass matter measurements megaparsec ment Milky million light missile modern molecules Moon motion nature nebulae Newtonian objects observations orbit parsecs particles percent physical planetary system planets possible predicted primeval problem protons quantum theory quasars radio galaxies recessional velocity redshifts rocket satellite scale scientific scientists seems Shapley solar system Soviet space probe spacecraft spectral lines sphere Sputnik stars stellar surface telescope temperature thousand tion Tycho Brahe Universe velocity Venus Viking wavelength World Perspectives zero