The unique optical properties of the Keck Observatory telescope now open up the possibility of using additional lens to generate even more accurate data. This study is strengthened by the fact that the results corroborate those obtained from the Hubble Space Telescope, a widely trusted instrument in the cosmology field. By comparing these images, the cosmologists determined that the universe is expanding approximately 9% faster than the rate predicted by conventional models.Īlthough it is not uncommon for experimental data to challenge theoretical models, scientists must carefully rule out possible causes of error before accepting provocative conclusions. After pointing it at three very active galaxies deep in space, the telescope collected multiple distorted images of the galaxies that corresponded to different points in time. In their study, the researchers utilized the Keck Observatory telescope in Hawaii, which is equipped with special lenses that measure the way light gets distorted by space objects as it travels towards Earth. Using a new technique, cosmologists from the University of California, Davis have now determined that the universe is expanding faster than the original models predicted. Using this technique, cosmologists predict that while the universe first expanded quite quickly after the Big Bang, this expansion later slowed due to the appearance of the mysterious force known as dark matter. Because light travels at a constant speed, viewing distant objects in space allows them to be seen as they were when the universe first began. Cosmologists-scientists that study the development of the universe-can determine how it changes over time by visualizing very distant radiation left over from the Big Bang that occurred 13.8 billion years ago. Unbeknownst to most of us, our universe is constantly expanding.
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