Long articles are widely used on 'EarthSky' as elaborated and interesting content can help the channel to reach a high number of subscribers. In addition there are a few medium length articles.
Intermediate readability level is common for 'EarthSky' articles as it addresses the matters that demand certain level of education to be understood. Sometimes the channel gets even more difficult by issuing pieces of advanced readability level (there are just a few of them). In addition the channel contains materials of a basic readability level, making up more than a quarter of its content.
Positive emotional expressions prevail throughout the texts: they may include favorable reviews, appreciation or praise in regard to the subjects addressed on the channel. However, the channel also contains some rather negative or critical records that make up just a small amount of all its content.