Answer:
Sherpa is one of the Tibetan ethnic groups native to the most mountainous regions of Nepal and the Himalayas. The term sherpa or sherwa derives from the Sherpa language words Shyar and Pa, which refer to their geographical origin of eastern Tibet.
I found this in wiki
No light can escape from it. If the way we see things and colors is the light being absorbed and reflected, we cannot see a black hole if no light can be reflected. The only way scientists can tell if a black hole is present is the impact of it to the surrounding stars and gas.
