When that image got posted I honestly thought it was satire being taken out of context. Nope. I found the article and I'm losing my stuff.
Man is a term that often refers to the human race as as a whole. "No Man's Sky" is obviously short for "No Human's Sky". What's truly ironic is that if it really was "No Male's Sky"--that would mean the woman explore! Isn't that what Jezebel wants?!