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Spiral galaxy ESO 137-001 never had a chance to survive its encounter with the Norma Cluster as it was just one galaxy against many. Galaxy cluster Abell 3627, located around 200 million light-years from the Milky Way galaxy, contains hundreds, or even thousands, of galaxies bound together by gravity.
The galaxy cluster is surrounded by hot gas and is in the process of stripping spiral galaxy ESO 137-001 of young stars. In the Hubble photo, the hot young stars, along with surrounding gas, being ripped away from the spiral galaxy by Abell 3627 are seen as blue streaks.
According to the Hubble release, the process is known as ram pressure stripping. In this case, the superheated plasma, reaching temperatures of 100 million degrees Fahrenheit, at the center of Abell 3627 is putting pressure on ESO 137-001, leading to a drag force that is ripping the young stars and gas from the spiral galaxy. This process can also occur to galaxies within the cluster.
Galaxy cluster Abell 3627, located around 200 million light-years from the Milky Way galaxy, contains hundreds, or even thousands, of galaxies bound together by gravity.
so - everything we see in the sky is perhaps already dead, right?
A new study in 2006 has found that spiral galaxies line up like beads on a string, with their spin axes aligned with the filaments that outline voids