In Celestial Archives 1, don't activate the Ship Deck Portal. When you come back to do Celestial Archives 2, you can then activate the CA1 Ship Deck Portal, and it works! This saves you having to go back through the first section again. Don't know if this is known but I didn't see it on the site. This method may be adaptable to other planets / stations but I'm not sure without checking.
Thread title: