People think that space is cold.  They are wrong.  It can be cold, and in shadow it is so cold that metal can snap.  But in direct sunlight, that same metal can melt due to the heat.  Of course, that is in a star system.  Matters get far more interesting in interstellar nebulas, the various walls, and in the star clusters that dot our territories.  We have yet to map all of the mysteries of space, but we have learned one thing.  We do not know anything yet.