There are many kinds of newspapers and periodicals, which should be distinguished according to their positions, audience groups and group interests, so their contents are different. Therefore, as far as newspapers are concerned, there can be metropolis newspapers with heavy entertainment and strong official atmosphere, such as People's Daily, even magazines.
A newspaper can have news, newsletters, editorials and so on, and news commentary is just one of them. News commentary is a personal comment on social phenomena or social problems caused by a certain news, which is subjective and different from news, newsletter and other news genres that emphasize objectivity, accuracy and balance.
Therefore, I can't tell the difference between a newspaper and a news commentary. I am a sophomore, please point out anything wrong.