Following an ancient galaxy-galaxy collision 200 million light-years from Earth, debris from a gas-rich galaxy, NGC 5291, was flung far into intergalactic space. - Image Credit & Copyright: CHART32 Team, Processing - Johannes Schedler
Markarian’s Chain: M84, M86, M87 in Virgo byMakis Palaiologou, Stefan Binnewies and Josef Pöpsel Markarian’s Chain is a stretch of galaxies that forms part of the Virgo Cluster. It is called a chain because, when viewed from Earth, the galaxies lie along a smoothly curved line. It was named after the Armenian astrophysicist, B. E.
Galaxies Collide ~ Top right is M31, the Andromeda Galaxy, 2.5 million light-years away. Bright yellow star at the center is Mirach, beta star in the constellation Andromeda. Bottom left is M33, the Triangulum Galaxy, is also about 3 million light years away. Although they look far apart, M31 and M33 are engaged in a gravitational struggle. Radio astronomers have found indications of a bridge of neutral hydrogen gas that could connect the two, evidence of a closer encounter in the past…
A galaxy in bloom The ghostly shells of galaxy ESO 381-12 are captured here in a image from the NASA/ESA Hubble Space Telescope, set against a backdrop of distant galaxies. The strikingly uneven structure and the clusters of stars that orbit around the galaxy suggest that ESO 381-12 may have been part of a dramatic collision sometime in its relatively recent past. Credit: NASA, ESA, P. Goudfrooij (STScI) Source: http://www.spacetelescope.org/news/heic1516/
Size of Andromeda if it were brighter!
NASA’s Hubble Space Telescope has picked up the faint, ghostly glow of stars ejected from ancient galaxies that were gravitationally ripped apart several billion years ago... The scattered stars are no longer bound to any one galaxy, and drift freely between galaxies in the cluster. By observing the light from the orphaned stars, Hubble astronomers have assembled forensic evidence that suggests as many as six galaxies were torn to pieces inside the cluster over a stretch of 6 billion years.
A Tidal Galaxy "A previously unsuspected tidal dwarf galaxy candidate appears only in the ultraviolet, indicating the presence of many hot young stars as seen in this cool space Image. IC 4970, the small disk galaxy interacting with NGC 6872, is located above the spiral’s central region. The spiral is 522,000 light-years across from the tip of one outstretched arm to the tip of the other, which makes it about five times the size of our home galaxy, the Milky Way