In this chapter of the Mars saga, Jaime Maussán explores possible thermonuclear explosions on Mars. In October 2015, cameras from the Indian space agency and a telescope that followed the path of a comet, captured what appeared to be a nuclear explosion on the red planet. At the same time, different experts claim that there are remnants of old explosions on its surface. Evidence suggests that our close neighbor was once like Earth, with water and possibly life, but that it lost part of its atmosphere ... Could there have been a nuclear war on Mars that destroyed its once vital biosphere?