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Astronomers discovered an accelerating star near a huge black hole in the center of the Milky Way for the first time. The observations, made with the aid of a massive telescope in Chile, followed a star called S2 as it traversed a powerful magnetic field at the heart of our galaxy.
When the star reached its nearest point to the black hole on May 19,
Astronomers followed the star and were preparing to record their observations over the last 16 years, the time it was necessary to complete an oval orbit around the black hole.
Scientists faced a great challenge in watching this weak star, far from the Earth. A thousand years ago, when he passed the black hole itself surrounded by a halo of dust and burning debris. They used a telescope large enough to see the star of the ground as a tennis ball on the moon and used high resolution instruments to correct the oscillations of the telescope and the interference of the Earth's atmosphere
. As the black hole approached, the star appeared redder because of the light generated by the massive gravitational pull of the massive material described by the theory of relativity. The black hole in the center of the galaxy is about ten times the size of the sun, but its mass is about four million solar masses. 
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