Get a Language Tutor
If you have questions about the conjugation of гелиоцентризм or Russian nouns in general, you can practice and get feedback from a professional tutor.
Высказывания, Коперника или возрождение гелиоцентризма.
Copernicus, say, or the revival of heliocentrism. Other than a few obvious snippets. Copernicus, say, or the revival of heliocentrism.