Why does the Sagittarius A glow?

Answer 1

Sagittarius A*, the supermassive black hole at the center of our galaxy, glows primarily due to the intense gravitational forces acting on nearby matter. As gas, dust, and stars are drawn toward the black hole, they form an accretion disk, heating up to extremely high temperatures and emitting X-rays and other forms of radiation. This process generates the glow that we can detect from Earth, revealing the dynamic and energetic environment surrounding the black hole.