Space tourism is still a long ways off, but it’s not hard to imagine that someday, tourists will visit the natural geological landmarks of other worlds much like they tour the Grand Canyon, Mount Everest or Ayers Rock.
Each of these great tourist destinations needs a classic retro travel poster to entice visitors.
Until the day people settle off world and make their own destinations many of these may be the places that people will want to travel too.
I hope that these posters can inspire people to think beyond our world to the limitless possibilities of the Universe.
The MiceNGC 4676, or the Mice Galaxies, are two spiral galaxies in the constellation Coma Berenices.
About 290 million light-years away, they began the process of colliding and merging about 290 million years ago.
Their name refers to the long tails produced by tidal action—the relative difference between gravitational pulls on the near and far parts of each galaxy—known here as a galactic tide.
It is a possibility that both galaxies, which are members of the Coma cluster, have experienced collision, and will continue colliding until they coalesce.