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Supernovas are violent eruptions that occur in the last moments of the death of the star. There is nothing like such explosions that, according to NASA, are the "biggest eruption" in space. When supernovas extinguish, they burn for a relatively short time, but often shine as brightly as their host galaxy. Unfortunately, astronomers find it difficult to observe these eruptions in our own Milky Way because of stellar gas obstructing sight.
However, other distant galaxies are within reach of powerful observatories such as the Subaru Telescope at the Mauna Kea Observatory in Hawaii.
The incredible instrument is the flagship telescope of the National Astronomical Observatory of Japan and is one of the largest of its kind.
Astronomers have now used the Subaru telescope to identify a grand total of 1,824 new supernovas.
And 54 of them are rare type Ia supernovas at more than eight billion light years away.
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Professor Naoki Yasuda of the Kavli Institute for Physics and Mathematics of the Universe, who led the team responsible for this amazing discovery, praised the telescope's capabilities.
The astronomer said: "The Subaru telescope and Hyper Suprime-Cam have already helped researchers create a 3D map of dark matter and observe primordial black holes, but this result now proves that this instrument has A very large capacity far from the Earth.
"I want to thank all my associates for their time and effort and look forward to analyzing our data to see what kind of image of the universe it contains."
Type Ia supernovas are of particular interest to astronomers because they occur in binary-star systems or in systems with an increasingly smaller and larger star in orbit.
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It is thought that these cosmic explosions are the result of an erupting white dwarf star and until recently, it was thought that they were the brightest of all known types of supernovae.
Their brightness makes them easier to spot and allows astronomers to calculate their distance.
Being able to calculate the distances involved is a crucial measure for scientists studying the rate of expansion of the universe.
Astronomers were also able to identify with the Super Luminous Supernovae telescope, which is five to ten times brighter than type Ia explosions.
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The Subaru telescope is equipped with an 870-megapixel digital camera, capable of capturing much of the night sky at once.
Astronomers have used this camera to take snapshots of the same piece of night sky over a six-month period.
The scientists then identified new supernovas as they reached their maximum brightness before disappearing.
Their results produced five super bright supernovae and about 400 of type Ia.
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