Mars in fiction from his home planet, often invading Earth, but sometimes simply a lonely character representing alienness from his surroundings. Martians, other than human beings transplanted to Mars, became rare in fiction after Mariner, except in exercises of deliberate nostalgia – more frequently in some genres, such as comics and animation, than in written literature. Mars in fiction Fictional representations of Mars have been popular for over a century. Interest in Mars has been stimulated by the planet's dramatic red color, by early scientific speculations that its surface conditions might be capable of supporting life, and by the possibility that Mars could
Dora the Explorer: Journey to the Purple Planet the top of the tall mountain. When they reach the top of the mountain, the group launch themselves into outer space. Dora, Boots, and the aliens are required to find 4 colored space keys on different planets to unlock the Space Door to the Purple Planet. First, they find the Green Key on the slimy Green Planet. Next, they go to bubbly and musical Yellow Planet to find the Yellow Key. Then, they go to the windy and nebular Blue Planet to find the Blue Key. Last, they find the Red Key on the mechanical Red Planet. After opening the