The Universe is everything, as far as we know. A galaxy is just a collection of stars. A galaxy is huge - typically about 100,000 light-years across - but the visible Universe contains hundreds of billions of galaxies.
A satellite galaxy is one that revolves around another galaxy.
A star is one, a galaxy is many.
The arms of the Spiral Galaxy are mostly located in one plane.
size
A galaxy contains planets and a star system contains only stars.
Galaxy is a smooth chocolate and a milky way has white stuff in the middle.
I'm no expert but I think they are the same phone.
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As the name suggests, the barred spiral galaxy has a barred central core.See related link for a pictorial
A galaxy is a collection of billions of stars. The brighter of these may show up separately, if sufficiently magnified.
stardust pegasus is storm pegasus but with blue recolored metal wheel (fusion wheel). galaxy pegasus is still galaxy pegasus