NASA’s MAVEN orbiter has taken several views of Mars in the ultraviolet light (which is light beyond what our eyes can see). Doing this can reveal new features or systems taking place on the planet.

The images were taken at different times in Mars orbit. Here we present the images next to generated images of Mars for easy comparison.

It’s twenty years since the launch of Mars Express and later this year it will also complete twenty years of orbiting Mars – it continues to be one of the most successful orbiters ever.