NASA ditching insensitive nicknames for cosmic objects

Planetary nebula NGC 2392 has been called the "Eskimo Nebula." "'Eskimo' is widely viewed as a colonial term with a racist history, imposed on the indigenous people of Arctic regions," NASA explained.

The agency will also use only the official designations of NGC 4567 and NGC 4568 to refer to a pair of spiral galaxies that were known as the "Siamese Twins Galaxy."