most of the mass in a cluster of galaxies is invisible, which provides astronomers with the strongest evidence that the universe contains a great amount of DARK MATTER
most of the mass in a cluster of galaxies is invisible, which provides astronomers with the strongest evidence that the universe contains a great amount of DARK MATTER
Dark matter may be invisible to light, but it can still be detected, through its gravitational interactions. Specifically, it can be detected: * By the fact that galaxies rotate way too fast, for the amount of known matter. * By gravitational lensing.
Galaxies. They are just about the same now as they were then. 14 Billion years ago, astronomers believe that the "Big Bang" created matter from energy, which is how they believe galaxies were formed.
Wherever you look, galaxies and galaxy clusters are observed to have much more mass than the sum of the known matter (stars, dust, gas, black holes). Galaxies rotate too fast for the known amount of matter, galaxies in a galaxy cluster move too fast, and gravitational lensing indicates a larger mass than the known masses.Wherever you look, galaxies and galaxy clusters are observed to have much more mass than the sum of the known matter (stars, dust, gas, black holes). Galaxies rotate too fast for the known amount of matter, galaxies in a galaxy cluster move too fast, and gravitational lensing indicates a larger mass than the known masses.Wherever you look, galaxies and galaxy clusters are observed to have much more mass than the sum of the known matter (stars, dust, gas, black holes). Galaxies rotate too fast for the known amount of matter, galaxies in a galaxy cluster move too fast, and gravitational lensing indicates a larger mass than the known masses.Wherever you look, galaxies and galaxy clusters are observed to have much more mass than the sum of the known matter (stars, dust, gas, black holes). Galaxies rotate too fast for the known amount of matter, galaxies in a galaxy cluster move too fast, and gravitational lensing indicates a larger mass than the known masses.
Galaxies were made by God from the beginning of time.Answer:The scientific opinion is that galaxies result from the gravitational attraction of matter into stars and the interactions of the stars to form clusters of swirling stars.. The matter originated in the "Big Bang" that was the beginning of the Universe some 15 billion years ago.
Galaxies were made by God from the beginning of time.Answer:The scientific opinion is that galaxies result from the gravitational attraction of matter into stars and the interactions of the stars to form clusters of swirling stars.. The matter originated in the "Big Bang" that was the beginning of the Universe some 15 billion years ago.
Probably not. Dark matter is not believed to concentrate well in or around masses the size of stars. But it does concentrate well around galaxies and clusters of galaxies. Most of the mass of a galaxy like ours is believed to be in a sphere of dark matter in the galaxy's spherical halo.
There are several pieces of evidence for dark matter. For example: * Our galaxy, and many other galaxies, rotate way too fast for the amount of known matter. * Evidence from gravitational lensing.
Galaxies are held together by gravity. So are Solar Systems. In the case of galaxies, and galaxy clusters, it isn't entirely clear what type of masses provide this gravity - the amount of known matter is simply too small, by a factor of 5-10. For more information, do some reading on "dark matter".
The largest THING in the universe is the universe itself. Then would come DARK ENERGY. Third is DARK MATTER and lastly would be clusters of galaxies.
Cluster's form because gravity gradually builds a center of mass which over time accumulates more and more matter which can explain the formation of galaxies as well as globular clusters.
The evidence for the existence of dark matter in the universe includes the extra mass of Galactic clusters discovered by Fritz Zwicky, and the spinning galaxies which rotate at the same speed as discovered by Vera Rubin.