The supermassive singularity at the center of our galaxy (Sgr A*) flares in X-ray radiation every 5 - 10 days. Astronomers swing NASA's Swift XRT spacecraft to spy on the 4 million solar mass black hole every few days.
The supermassive singularity at the center of our galaxy (Sgr A*) flares in X-ray radiation every 5 - 10 days. Astronomers swing NASA's Swift XRT spacecraft to spy on the 4 million solar mass black hole every few days.
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