You have have them draw pictures of the characters, setting, etc. Sometimes I print out the stacks and then have the students draw their pictures by hand. This makes a great display for parents' night. This a fun project that is suitable for most grade levels. You don't have to go searching for a lot of pictures and movies because there are plenty that come right with Hyperstudio.
Students can design a trip to one of the planets but they have to do their research first.
They can provide details of their trip, draw the spaceship that they will use, how long it will take them to their and what they will be doing once they are there. Students can also include factual information of the planet in terms of location, size, makeup and its satellites. There are some videos of Saturn and Jupiter that come with Hyperstudio that can be added.