There are only about a thousand things I don't understand about sub-atomic physics, but mostly I don't understand one of the basic features of black holes: light can't escape. If a particle has no mass it has to travel at the speed of light, if it has no mass then it is unaffected by gravity. How does a black hole prevent light from escaping?,(reply>), <b>Thanks for watching my subscribers out there, share your opinion⤴️ and thoughts 🎉</b>