Mars

Mars is where Elon Musk briefly rapped in Elon Musk vs Mark Zuckerberg.

Information on the location
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury. In English, Mars carries a name of the Roman god of war, and is often referred to as the "Red Planet" because the reddish iron oxide prevalent on its surface gives it a reddish appearance that is distinctive among the astronomical bodies visible to the naked eye. Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the valleys, deserts, and polar ice caps of Earth.

Appearance in the battle
This is the location where Elon Musk briefly rapped from the line “Your platform only launches depression” until the end of the battle.