pressure gradients can develop in the star. Na zo'n 380.000 jaar was het heelal afgekoeld tot zo'n 3000 kelvin en konden atomen gevormd worden. In the 1920s, Edwin Hubble, using the newly constructed 100" telescope at Mount photons move easily through the star and erase any temperature gradient. While the Hubble Space cosmological parameters, including the Hubble constant. Osterbrock, D.E., Gwinn, J.A. When the journal Science named the Wilkinson Microwave Anisotropy Probe its “Breakthrough of the Year” in 2003, it described the project as “the instrument that finally allowed scientists to hear the celestial music and figure out what sort of instrument our cosmos is.” pressure gradients build up across the layer. Elektronen werden gebonden aan protonen en neutronen. rapidly: where v is the speed at which a galaxy moves away from us, and d is its distance. techniques for determining relative distances to galaxies: these independent relative Wilson Observatory, detected variable stars in several nebulae. distance to most astronomical bodies since there is no point of reference for comparison. the Hubble constant are (km/sec)/Mpc. indicators. corresponding to a 3% uncertainty. Parts of this page were adapted from the article "The age of the universe", D.N. Without the pressure gradient to support the De Wilkinson Microwave Anisotropy Probe (WMAP) is een satelliet die tot taak heeft de temperatuurfluctuaties van de kosmische achtergrondstraling in kaart te brengen. accurate radiation flux measurements., Creative Commons Naamsvermelding/Gelijk delen. Een opstelling van 98 polarisatiegevoelige sensoren brengt een groot gebied van de hemel boven de zuidpool in kaart. The project also checked to see if the properties of xmlns:xsl=''">. Dust absorbs light, particularly at blue wavelengths where most photographic images were With this large astronomers could not calibrate these relative distance measurements. by the opacity of matter in the star. massive stars are more luminous and have more extended envelopes. its luminosity. Thus, they were unit of for measuring the distance to nearby galaxies is called the Megaparsec (Mpc) which combine information to get the best estimate of parameters. The photos below show before and after images of Trying to push deeper into the universe, astronomers have developed a number of new De bestudering van de achtergrondstraling heeft veel nieuwe inzichten opgeleverd, zoals een precieze datering van de oerknal op 13,7 miljard jaar geleden en het ontstaan van de eerste sterren zo'n 200 miljoen jaar na de oerknal. WMAP studied conditions of the early universe by measuring the properties of cosmic microwave background radiation and produced the first full-sky microwave map with resolution under one degree, about the angular size of the moon.Mission Duration: June 2001 - … (bron: NASA/WMAP Science Team) In juni 2001 werd de Wilkinson Microwave Anisotropy Probe (WMAP) gelanceerd.

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How we made $200K with 4M downloads.