Ignoring Tony's subtle jab, Luke combined with Shriek, then took Selina, who combined with Gold Nugget, on a trip around the solar system.
Given how the symbiotes were stuffed into a meteorite and launched into space, there was no need to doubt their ability to survive.
Naturally, Luke, who prioritized safety, wouldn't let go of such a useful 'tool.'
Taking the symbiotes along, he and Selina roamed Venus in the solar system. They looked at Mars, which didn't have any Martians, and then at Saturn's dazzling rings. This could be considered completing a trial run of the fighter plane.
Half a year later, Tony's spaceship, considered the first in the world, was completed.
This also meant that the superheroes on Earth could now play with custom-made spaceships.
The tycoon wasn't willing to sell his designs for the time being, but Luke didn't care.