This threead is
BAD ASTRONOMY !
Demo videos show that "terraforming" in spore includes "throwing astertoids" at a planet (to become meteorids) even if dinosaurs on that planet wont like it much.As for
satellites:
"A satellite is any object that orbits another object (which is known as its primary). All masses that are part of the solar system, including the Earth, are satellites either of the Sun, or satellites of those objects, such as the Moon."
Orbital Space Starions and Death Stars are satelites, Voyarer 1 is not!
Asteroids:
"An asteroid is a predominantly rocky body that orbits around its star. In our solar system, asteroids are the best known class of minor planet (or planetoid). They are much smaller than even the small major planets such as Mercury or Mars. The vast majority of the asteroids are found within the main asteroid belt," "asteroids can have moons" Asteroids orbit the sun and not other planets. Matter that orbits planets are satelites (moons) or orbital rings (dust disks).
Comets:
"A comet is a small body in the solar system that orbits the Sun and (at least occasionally) exhibits a coma (or atmosphere) and/or a tail — both due primarily to the effects of solar radiation (they get closer to the sun and "melt")... Due to their origins in the outer solar system and their propensity to be highly affected (or perturbed) by relatively close approaches to the major planets, comets' orbits are constantly changing."
Comet Halley has a period of ~75 years (one round).
Meteor...:
Any object (asteroid, comet,MIR) that could hit earth it a metheoriD.
Anything that enters any atmosphere is called meteor (basically just its flame tail because it heats up a lot and breaks into pieces) Most meteors are so small that they burn to gas before they hit the ground. If they are large enough to hit the ground they leave a burned meteoriT (usually broken in pieces).
Asteroids around multiple stars:
You mean comets! And you mean FAR away comets with a period of at least 100.000 years.
I would be surprised if we ever find (real) comets that orbit in between our sun and another sun, the distance would make it hard to predict its movement anyways, and there are many obstracles in gravity and
Oort cloud to many large scale variables to work for now. Its not only unrealistic, its very unpracticable to implement in spore.
Changing
universe:
"it Wood be cool to build your base on a constantly moving object, that possible changes universe from time to time."
whatever you mean, i bet you do NOT mean "universe" as in 13,7 billion years old observable universe. Bet you mean solar systems.