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Redshift and Hubbles Law - NASA Redshift and Hubble's Law For very far objects (beyond about 1 billion light-years) none of the above methods work Scientists must move from direct observation to using observations in conjunction with a theory The theory used to determine these very great distances in the universe is based on the discovery by Edwin Hubble that the universe is expanding
StarChild: The Hubble Space Telescope - NASA The Hubble Space was named after Edwin Hubble, an astronomer whose contributions to astronomy include a classification system for galaxies and the Hubble Constant The Hubble Constant defines the relationship between a galaxy's distance from the Earth and the speed with which the galaxy is moving away from the Earth
StarChild: El Telescopio Espacial Hubble - NASA El Telescopio Espacial Hubble El Telescopio Espacial Hubble fue denominado así en homenaje al astrónomo Edwin Hubble, quien, cuando era un ñiño, trabajaba como repartidor de diarios
StarChild: El Telescopio Espacial Hubble - NASA El Espacial Hubble fue llamado así en honor a Edwin Hubble, un astrónomo cuyas contribuciones a la astronomía incluyen un sistema de clasificación de las galaxias y la Constante de Hubble La Constante de Hubble define la relación entre la distancia a una galaxia medida desde la Tierra y la velocidad a la cual la misma se está alejando de la Tierra
StarChild: The Hubble Space Telescope - NASA The Hubble Space The Hubble Space Telescope was named after the astronomer Edwin Hubble, who, as a boy, had a paper route The Hubble Space Telescope was launched on the Space Shuttle on April 24, 1990 It is a very special telescope which orbits far above the Earth
StarChild Scavenger Hunt - Level 1 - NASA 7 What was the name of the first animal to orbit Earth? 8 How fast is the Moon moving away from the Earth? 9 Where can the "Mathy Way" activity be found? 10 What job did Edwin Hubble have as a boy? 11 How long did it take the space probe Galileo to reach Jupiter? 12 When did Skylab re-enter Earth's atmosphere? 13 How often are new
StarChild: Cosmology - NASA About 100 years ago, astronomer Edwin Hubble made observations that showed the universe was getting bigger and bigger! This led most cosmologists to believe in a theory called the Big Bang The Big Bang theory says the universe began with a huge explosion ten to twenty billion years ago
StarChild: Cosmology - NASA A major breakthrough in our understanding of the universe took place in the 1920's thanks to American astronomer Edwin Hubble For centuries, astronomers believed that the Milky Way made up the entire universe
Cepheids - NASA Cepheids, also called Cepheid Variables, are stars which brigthen and dim periodically This behavior allows them to be used as cosmic yardsticks out to distances of a few tens of millions of light-years