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Context:

• A radio signal originating from atomic hydrogen in an extremely distant galaxy was detected by the Giant Metrewave Radio Telescope (GMRT) located in Pune.

GMRT:

• About: The Giant Metrewave Radio Telescope (GMRT), is an array of thirty fully steerable parabolic radio telescopes of 45 metre diameter, observing at metre wavelengths.
• Location: It is located about 80 km north of Pune at Khodad.
• Aim: To determine the epoch of galaxy formation in the universe.
• Usage: Astronomers from all over the world regularly use this telescope to observe many different astronomical objects such as HII regions, galaxies, pulsars, supernovae, and Sun and solar winds.
• Recent finding: In February 2020, it helped in the observation of the biggest explosion in the history of the universe, the Ophiuchus Supercluster explosion.

https://www.downtoearth.org.in/news/science-technology/giant-metrewave-radio-telescope-in-pune-helps-detect-atomic-hydrogen-from-far-away-galaxy-87187

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