10 Things You Didn't Know About Mars's Atmospheric Experiments

In 1976, NASA's Viking 1 and Viking 2 landers became the first human-made objects to touch down on Mars. These historic missions not only captured the world's attention but also marked the beginning of our exploration of the Martian atmosphere. Equipped with instruments like the Gas Chromatograph-Mass Spectrometer, the landers analyzed the composition of the atmosphere, revealing its primarily carbon dioxide nature.