[thackney]

Although not even light can escape the powerful gravitational pulls of black holes — hence, their name — black holes are often bright. That’s because they’re surrounded by features known as accretion disks, which are made up of gas and dust that heat up and give off light as it swirl into the black holes.

[Future Snake Eater]

That’s because they’re surrounded by features known as accretion disks, which are made up of gas and dust that heat up and give off light as it swirl into the black holes.

As visualized in "Interstellar."