Largest (findings) in the Universe

Universe (Credit: NASA/Chandra)

We have collected some of the largest objects or findings in the Universe. Hopefully, you will find them interesting.

Largest and hottest Galaxy Cluster:

Astronomers reported the finding of the hottest and largest Galaxy cluster, dubbed El Gordo Galaxy Cluster, in January, 2012. This is officially known as ACT-CL J0102-4915. “El Gordo” means “fat one” or “big one” in Spanish.

“This cluster is the most massive, the hottest, and gives off the most X-rays of any known cluster at this distance or beyond,” said Felipe Menanteau of Rutgers University in New Brunswick, N.J., who led the study.

It is present about 7 billion light years away from Earth and is about two quadrillion times the mass of the sun.

Largest object in the Universe:

After exactly one year of the finding of the largest galaxy cluster, astronomers recently reported the largest known structure, which is a collection of active galactic cores that is about 4 billion light years from one end to another at its widest point.

This object is the large quasar group (LQG) composed of brightly shining nuclei powered by supermassive central black holes.

This quasar group has 73 quasars.

“While it is difficult to fathom the scale of this LQG, we can say quite definitely it is the largest structure ever seen in the entire universe,” lead author Roger Clowes, of the University of Central Lancashire in England, said in a statement. “This is hugely exciting, not least because it runs counter to our current understanding of the scale of the universe.”

Largest spiral galaxy in the Universe:

Astronomers recently reported the largest galaxy ever found in the Universe. This galaxy is referred to as NGC 6872. It is about 5x bigger than our own Milky Way galaxy. It would take nearly 522,000 light-years for anything to move linearly from the arm of one side to the other side in the spiral shaped galaxy.

This galaxy is present about 212 million light-years away from us.

Largest ever found black hole blast in the Universe:

Astronomers have reported the largest ever found black hole blast resulting in the most intense quasar outflow in the last part of the last year. These energetic materials are referred to as SDSS J1106+1939.

“We have discovered the most energetic quasar outflow known to date. The rate that energy is carried away by this huge mass of material ejected at high speed from SDSS J1106+1939 is at least equivalent to two million million times the power output of the Sun. This is about 100 times higher than the total power output of the Milky Way galaxy – it’s a real monster of an outflow,” team leader Nahum Arav (Virginia Tech, USA), said in a statement. “This is the first time that a quasar outflow has been measured to have the sort of very high energies that are predicted by theory.”

Largest ever found black hole:

Astronomers reported the supermassive black hole dubbed ULASJ1234+0907 in the final quarter of the last year.

This supermassive black hole is about 10 billion times the mass of the Sun and is found to have 11 billion years of age. Astronomers thought that this is the largest ever black hole ever observed and there could be about 400 such giant black holes in the universe.

Largest star ever found in the Universe:

Astronomers reported the largest star is Star R136a1 that is nearly 300 times bigger and 10 million times brighter than our Sun.

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