Our Black Hole is Sucking a Mystery Object Now, It's Going to Erupt

The black hole at the center of our galaxy, Sagittarius A*, is sucking a mystery object. Astronomers say it will lead to the black hole's eruption in 2036. The mystery object has been named X7, and it's more than 50 times the mass of the Sun. But what’s the exact nature of this mystery object? How did it get so close to the galactic center? Finally, and most importantly, why is the understanding of the origin and the fate of X7 so critical for astronomers?