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Science and Technology
Black hole - Powehi
April 13 , 2019
1975 days
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The first-ever black hole to be photographed has been named "Powehi".
The name was given by renowned Hawaiian language professor, Larry Kimura from the Hawaiian word "Kumulipo".
It lies at the center of the largest galaxy Messier 87, which is about 54 million light-years away.
Scientists have obtained this image of a black hole using Event Horizon Telescope observations.
Event Horizon Telescope
The Event Horizon Telescope (EHT) is an array of eight ground-based radio telescopes forged through international collaboration.
EHT used very-long-baseline interferometry (VLBI) technique, a technique that linked and synchronised all the 8 telescopes around the globe.
The synchronised telescopes together formed an Earth-sized virtual telescope with unprecedented sensitivity and resolution.
EHT array of telescopes
Atacama Large Millimeter Array
James Clerk Maxwell Telescope
Atacama Pathfinder Experiment
Large Millimeter Telescope
Heinrich Hertz Submillimetre Telescope
South Pole Telescope
IRAM 30m telescope
Sub-Millimeter Array
Black Holes
A Black Hole is a region of space which is of immense gravity that nothing can escape from it.
Even light does not escape after entering black hole.
Black holes are formed at the end of some stars’ lives.
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