Continuing our top 10 ranges, today we will write about top 10 largest cities in the world by land area.
Astronomers have identified some of the oldest galaxies in the Universe. The team from the Institute for Computational Cosmology at Durham University and the Harvard-Smithsonian Center for Astrophysics, has found evidence that the faintest satellite galaxies orbiting our own Milky Way galaxy are amongst the very first galaxies that formed in our Universe.View More Astronomers Have Discovered Some of the Oldest Galaxies
In our website we are continuing our tops and today we will introduce top 10 largest galaxies in the Universe. There are roughly 200 billion galaxies in the Universe. A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.View More Top 10 the Largest Galaxies in The Universe
By calculations of scientists through 3 billion years has to happen the collision of our galaxy of the Milky Way and the Andromeda galaxy. But astronomers think that the meeting will be not their first meeting. Hongsheng Zhao from Saint-Endru University (Great Britain) and his colleagues analyzed movement of the Andromeda galaxy and Magellanic Clouds, galaxies satellites of the Milky Way. They used the modified Newtonian loudspeaker (MoND). This theory developed by the Israeli scientist Mordechai Milgrom in 1983, explains expansion of the Universe without participation of dark matter. He noticed that the Newtonian force of gravitation works only for the bodies moving with rather big acceleration, and doesn’t operate on small accelerations. And therefore acceleration depends not linearly on the weight creating it for objects of level of galaxies and their congestions.View More Milky Way already have collided the Andomeda Galaxy 7-10 billion years ago
In constellation of the Whale the space telescope Hershel found the elliptical galaxy representing “a transitional link” between overactive ancient “star megalopolises” and modern elliptic galaxies. As well as the fossil bird, this galaxy is peculiar “a transitional link” from one stage of development to another. The scientists studied the pictures collected by the space telescope Herschel within the HerMES program. Analyzing the images received at supervision over constellation of the Whale, scientists noticed a big bright spot. Scientists interested in an unusual spot and in detail studied it, having connected to the project a space telescope “Hubble” and land observatories of SMA and VLA.View More Space telescope Herschel found an elliptical galaxy in the Whale constellation
This image, which shows NGC 4980, is composed of exposures taken in visible and infrared light by Hubble’s Advanced Camera for Surveys. The image is approximately 3.3 by 1.5 arcminutes in size.NGC 4980 is a spiral galaxy in the southern constellation of Hydra. The shape of NGC 4980 appears slightly deformed, something which is often a sign of recent tidal interactions with another galaxy. In this galaxy’s case, however, this appears not to be the case as there are no other galaxies in its immediate vicinity.View More Hubble Image Show Spiral Galaxy NGC 4980
New study finds that supernova explosions and the jets of a monstrous black hole are scattering a galaxy’s star-making gas like a cosmic leaf blower. The findings, which relied on ultraviolet observations from NASA’s Galaxy Evolution Explorer and a host of other instruments, fill an important gap in the current understanding of galactic evolution. It has long been known that gas-rich spiral galaxies like our oun smash together to create elliptical galaxies such as the one observed in the study.View More Galaxy NGC 3810
New observations which was made by using ESO’s Very Large Telescope will help to better understand the growth of teenage galaxies. In the biggest survey of its kind astronomers have found that galaxies changed their eating habits during their teenage years the period from about 3 to 5 billion years after the Big Bang. At the start of this phase smooth gas flow was the preferred snack, but later, galaxies mostly grew by cannibalising other smaller galaxies. Galaxies examined through the VLT are located in a tiny patch of sky more than 40 million light-years away, in the constellation of Cetus.View More Feeding of Teenage Galaxies