Exploration of Mars
The Viking program launched "Viking 1" and "Viking 2" spacecraft to Mars in 1975; The program consisted of two orbiters and two landers – these were the first two spacecraft to successfully land and operate on Mars.
The primary scientific objectives of the lander mission were to search for biosignatures and observe meteorologic, seismic and magnetic properties of Mars. The results of the biological experiments on board the Viking landers remain inconclusive, with a reanalysis of the Viking data published in 2012 suggesting signs of microbial life on Mars.
The Viking orbiters revealed that large floods of water carved deep valleys, eroded grooves into bedrock, and traveled thousands of kilometers. Areas of branched streams, in the southern hemisphere, suggest that rain once fell.
No Man Friday
The rocket reaches Mars but crash-lands. There, Holder learns how to produce oxygen and water, also discovering more about Martian species and nourishment. Eventually, he starts cooperating with the titanic inhabitants of the planet to survive. After fifteen years, an American mission lands, thinking themselves the first to reach Mars. Holder contacts the Americans, and then tries to return to the dominant Martian beings, but is prevented from reaching them. He returns to Earth with the Americans.