Historic! OLDEST Galaxy found by James Webb Space Telescope | Tech News

Historic! OLDEST Galaxy found by James Webb Space Telescope

NASA's James Webb Telescope has snapped the four most distant, and therefore, oldest galaxies.

| Updated on: Apr 07 2023, 21:25 IST
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1/5 M1 Crab Nebula (March 20) - Today’s NASA Astronomy Picture of the Day is the Messier 1, which was first discovered by Chinese astronomers in 1054. Also known as the Crab Nebula, it is located about 6500 light-years away towards the constellation of Taurus and spans about 10 light-years across. The Crab Nebula is now also known to be a supernova remnant, which are the remnants left behind after a supernova explosion. (NASA/Detlef Hartmann)
2/5 Dark Nebulae and the Taurus Molecular Cloud (March 21) - is a fascinating snapshot of the dark nebulae and the star formation in the Taurus Molecular Cloud (TMC). Located about 400 light-years away, TMC is one of the closest molecular clouds to our solar system. The Taurus Molecular Cloud is also home to Hind's Variable Nebula (NGC 1555) about 650 light-years away as well as the star T Tauri. (NASA/Vikas Chander)
3/5 The Andromeda Galaxy (March 22) - Today’s NASA Astronomy Picture of the Day is the Andromeda Galaxy. According to NASA, the Andromeda Galaxy is twice the size of our own Milky Way Galaxy, spanning across nearly 260,000 light-years and containing over 1 trillion stars. (NASA/Abdullah Al-Harbi)
4/5 Spiral Galaxy NGC 2841 (March 23) - It is the Spiral Galaxy, also known as NGC 2841. It is an unbarred spiral galaxy located about 46 million light-years away in the constellation of Ursa Major, which is also known as the Great Bear. According to NASA, NGC 2841 has a relatively low star formation rate as of now, in comparison to other spirals that are alight with emission nebulae. (NASA/Roberto Marinoni)
5/5 Comet ZTF and the stars of Milky Way (March 24) - It is a picture of Comet ZTF fading away in the sky. According to NASA, it is now 13.3 light-minutes away from Earth and will go on its way before it makes another approach with Earth 50000 years into the future. The comet can be seen alongside stars of the Milky Way Galaxy towards the constellation Eridanus. (NASA/Rolando Ligustri)
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he newly discovered galaxies by the James Webb Telescope date back to a time when the universe was only 2 percent of its current age some 300 mn years after Big Bang. (Representative Image) (NASA)

Since the launch of NASA's James Webb Telescope, it has never failed to surprise with its unparalleled discoveries. From exoplanets, and distant galaxies, to breathtaking views of Nebula. James Webb Space Telescope has made very impressive discoveries. Now, the James Webb Telescope has made another historic discovery by detecting the oldest known galaxy. According to recent studies published in the Nature Astronomy journal, astronomers have "unambiguously detected" four of the most remote galaxies ever observed.

These galaxies date back to a time when the universe was only 2 percent of its current age, approximately 300 to 500 million years after the Big Bang, which occurred 13 billion years ago. Among the four remote galaxies detected, the oldest and most distant one is named JADES-GS-z13-0, which formed a mere 320 million years after the Big Bang, Weather.com reported.

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Stephane Charlot, a co-author of the two new studies and researcher at the Astrophysics Institute of Paris, claimed that this is the farthest distance ever observed by astronomers. Additionally, the James Webb Space Telescope confirmed the existence of another galaxy named JADES-GS-z10-0, which was first observed by the Hubble Space Telescope and dates back to 450 million years after the Big Bang.

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These galaxies discovered by the Webb Telescope are from the "epoch of reionization," a time when the first stars are believed to have emerged after the cosmic dark ages brought about by the Big Bang.

Tech behind the discovery of the oldest galaxy

The discovery of these galaxies has been possible due to the James Webb Space Telescope, as it has exceptional ability to detect infrared light through its NIRCam instrument.

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These galaxies discovered by the Webb Telescope are deficient in metals, which aligns with the standard model of cosmology. This is because of the fact that as we approach the Big Bang, there is less time for the formation of metals.

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First Published Date: 07 Apr, 21:25 IST