Interacting galaxies
There is no better way to show the colossal scale of the universe than imaging interacting galaxies. These enormous galaxies are light years separated but still gravitationally impact each other in different ways.
The most impressive one is the Whirlpool Galaxy where we can see in detail how M51 and NGC 5195 are in full collision.
The Whale galaxy & NGC 4656
The Leo Triplet
The Whirlpool Galaxy