Definition: Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
Input: It has a composition similar to 1 Ceres: a darkly colored surface that is heavily space weathered with the composition of primitive organic compounds, including tholins.

Its composition is similar to 1 Ceres: a dark colored surface that is heavily space weathered. It has the composition of primitive organic compounds, including tholins.