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Old 11-02-2018, 03:48 PM   #1
mahdavi3d
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Default Scientists confirm the Milky Way has a supermassive black hole

astronomy.com : Scientists finally confirm the Milky Way has a supermassive black hole


Using the ESOís sensitive GRAVITY instrument, researchers have confirmed that the enormous object at the heart of our galaxy is ó as scientists have assumed for many years ó a supermassive black hole.

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To measure the effects of gravity near to a black hole, scientists needed to observe an object actually traveling close to it. They found their mark in a small star called S2 whose orbit takes it deep within Sagittarius A*ís gravity well every 16 years. As they watched, they saw three bright flares traveling around the black holeís event horizon at about 30 percent of the speed of light ó around 216 million miles per hour.

Itís exactly what Einsteinís theory of general relativity predicts would occur when a hot spot (like S2) passes close to a black hole weighing as much as 4 million suns, and the observation helps to confirm that itís really there.
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Old 11-11-2018, 12:07 PM   #3
Gingin
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While some people still think that Earth is Flat, other manage to prove the existence of something hidden in the dark.

Mind Blowing Video
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