NASA is using their technology and knowledgebase to simulate black holes in ways previously impossible to learn more about their properties:

A new computer simulation tracking dark matter particles in the extreme gravity of a black hole shows that strong, potentially observable gamma-ray light can be produced. Detecting this emission would provide astronomers with a new tool for understanding both black holes and the nature of dark matter, an elusive substance accounting for most of the mass of the universe that neither reflects, absorbs nor emits light.

Let’s see what they find in the video on page 2

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