Complex sentence: On the other hand, as liquids and gases share the ability to flow, they are both calleduniverse is in gaseous form (with traces of detectable solid matter) as interstellar clouds or in plasma form within stars.
Split into simpler sentences: On the other hand, as liquids and gases share the ability to flow, they are both called fluids. Most known matter in the universe is in gaseous form (with traces of detectable solid matter) as interstellar clouds or in plasma form within stars.