What is Space Opera manga?

Space opera is a sub-genre of fiction that emphasizes romantic adventures in space. Space opera generally involves large-scale conflicts between opponents with powerful abilities and technology. The genre will often be melodramatic, sometimes playing music that can be nothing short of awesome. Warfare and a battle of wits are usually less emphasized, preferring romance (with exceptions, e.g. Ginga Eiyuu Densetsu). Some space operas tend to be formulaic and sometimes even prosaic, often employing very simple devices and somewhat obvious strategies. An example of this would be the infamous laws of physics in the Macross universe, in which the main male lead will hardly ever get hit in battle.