You must enter the Astrozone building and swap your saucer for a new ship, which you build on the Holopad.
you have to find the UFO in astro knights island.
You do not get or use a bucket on Astro Knights Island.
This means you have already completed the Arturus part of Astro Knights Island. Your spaceship should be parked on top of the castle if you return to the planet.
There is no treasure chest on Astro Knights Island.
Yes, anytime you are back on the Pewter Moon.
Saturn star moon
When your on the moon just jump to the big building and he is inside.
press the moon button then figure out the combination
There are no bird eggs in astro knights island.
get the fuel and put it in the rocket ship and put in 56 and 52.
On the Pewter Moon, see the manager at AstroZone about replacing your ship.
its on the island