A video in which a TikTok user claims humans once lived on Mars but rendered it uninhabitable in a nuclear war has gone viral.
The false but entertaining theory also states this war would have caused a nuclear winter which is responsible for Mars' popular red colour. It has currently been liked more than 230,000 times and shared nearly 10,000 times. It has been watched around 979,200 times.
The theory, explained by user crackheadjoedirt, was put forward in response to the question "what's a conspiracy theory that absolutely blows your mind" by another user.
"If enough nukes were to go off on a planet the first thing that would happen is a nuclear winter. A nuclear winter is an aftermath of nuclear blasts causing ash that is so thick that it blocks out the sunlight.
"Nuclear winters can last anywhere between 100 years and a thousand depending on how much ash is in the atmosphere."
"After all the natural resources are drained up from the nuclear winter, the planet turns red from dust. My theory is that we've come from Mars after we drained all of its natural resources and destroyed it with nuclear bombs."
"crackheadjoedirt" 
