Incredibly Detailed Image of Our Galaxy's Center Shows How Things Move Around a Black Hole

There’s a black hole called Sagittarius A* at the center of our galaxy. It has 4 million times the mass of the sun, but is only around the size of Mercury’s orbit. It’s 26,000 light years away, but let’s say some unfortunate mishap brought you within a light year or two of that behemoth. What would happen?