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: Hydra appears to be spectrally neutral like Charon and Nix, though Pluto is reddish.

Hydra looks to be spectrally neutral, like Charon and Nix. However, Pluto is reddish.