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Black hole - Powehi
April 13 , 2019
2054 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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