If there is a planet whose atmosphere consists of :
- 30% methane
- 70% oxygen
Then, can we land on it? If yes, then how, and why would it not explode? Also, can such a planet exist for a long time?
Take a look at this...
At 30% Methane, 70% oxygen and 0% of everything else, you have a near perfect mixture to go BOOM.
It is a pure miracle this place has not gone up in literal flames by now... the first meteor that comes along will make the entire atmosphere burn up. Do you need any more motivation to stay far, far away?