Black holes are bizarre things, even by the standards of astronomers. Their mass is so great, it bends space around them so tightly that nothing can escape, even light itself.
And yet, despite their famous blackness, some black holes are quite visible. The gas and stars these galactic vacuums devour are sucked into a glowing disc before their one-way trip into the hole, and these discs can shine more brightly than entire galaxies.
Stranger still, these black holes twinkle. The brightness of the glowing discs can fluctuate from day to day, and nobody is entirely sure why.
Perhaps this is why:
Their mass is so great, it bends space around them so tightly that nothing can escape, even light itself.
They are providing the evidence that their theories are incorrect, AND they keep saying the same things in the face of counter evidence, such as columnated polar jets of plasma that go for thousands of light years that emanate from many "black holes".
And yet, despite their famous blackness, some black holes are quite visible.
The standard model true believers are very cult like. In spite of contrary evidence they repeat their mantras.
"nothing can escape, not even light."
"comets are dirty balls of ice"
"There is no electricity in space"