PARIS: Astronomers on Wednesday (Apr 10) unveiled the first image of a black hole, one of the star-devouring monsters scattered throughout the ...
Most speculation had centred on the other candidate targeted by the Event Horizon Telescope - Sagittarius A*, the black hole at the centre of our own galaxy, the Milky Way.Locking down an image of M87's supermassive black hole at such distance is comparable to photographing a pebble on the Moon.It was also a team effort.
In the end, M87 was more photogenic. Like a fidgety child, Sag A* was too"active" to capture a clear picture, the researchers said. Coined in the mid-60s by American physicist John Archibald Wheeler, the term"black hole" refers to a point in space where matter is so compressed as to create a gravity field from which even light cannot escape.At the same scale of compression, Earth would fit inside a thimble. The Sun would measure a mere six kilometres edge-to-edge.
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