0 a way of referring to the planet Mars (= the planet fourth in order of distance from the sun, after Earth and before Jupiter):
The spacecraft has been designed to give Mars its first thorough checkup since the Red Planet formed about 4.5 billion years ago.
She helped develop equipment that landed on the red planet to search for signs of life that might have once existed there.
Join us for a discussion of Mars discoveries and what the future of Red Planet research holds.
Landing anywhere in space is hard – not least on the Red Planet.
Musk says X-Space aims to land two cargo ships on the red planet in 2022.
Learn about the newest Red Planet discoveries and new classroom science, technology, engineering and mathematics, or STEM, tools.