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.
Astronomers from Observatory “Gemini” received the most detailed to date image of the unusual galaxy NGC 660, relating to a rare class of polar galaxies. The galaxy NGC 660 is located at a distance of 40 million light years from Earth near the constellation Pisces. It is as if two separate star clusters: the spiral and lenticular. Such galaxies are called polar – they rotate the outer ring over the poles of the internal cluster. In addition, NGC 660 is the only other known polar galaxies in which the center has an old lenticular congestion. All polar galaxies are a result of the interaction of two separate star clusters. Some of them can be formed by the collision of two galaxies formed (for example, a galaxy can be formed by a merger in the future, with the Milky Way Andromeda).
Four billion years from now, the Milky Way galaxy as we know it will cease to exist. Our Milky Way is bound for a head-on collision with the similar-sized Andromeda galaxy, researchers announced on May 31. Over time, the huge galactic smashup will create an entirely new hybrid galaxy, one likely bearing an elliptical shape rather than the Milky Way’s trademark spiral-armed disk. Astronomers have long known that the Milky Way and Andromeda, which is also known as M31, are barrelling toward one another at a speed of about 250,000 mph (400,000 kph).
Astronomers have identified group of more than 675 stars , which seem to have been pushed out of our on Milky Way galaxy. The astronomers, Kelly Holley-Bockelmann and Lauren Palladino, say the group of stars they have identified have two characteristics that suggest they’re exiles from the Milky Way: they were found in intergalactic space between our galaxy and the neighbouring Andromeda, but their colour indicates that they originated close to the galactic centre.
According to new study an intensely bright X-ray beacon shining in the Andromeda galaxy is actually a signpost for a hungry black hole that is gobbling up matter at a furious pace.NASA’s Chandra X-ray observatory first discovered the so-called ultraluminous X-ray source (ULX) in late 2009 in the Andromeda galaxy, which is located about 2.5 million light-years away from our own Milky Way galaxy. Stellar black holes are formed by the collapse of massive stars and typically contain up to 10 or 20 times the mass of the sun. According to the new studies, the black hole causing the ULX object in Andromeda is at least 13 times more massive than our sun and formed after a massive star ended its life in a spectacular supernova explosion.