Here is Lockheed Martin's concept design for its Mars lander.
And here is an illustration from the talk Elon Musk recently gave about his Mars plans.
I looked at these and thought, those look like the cover illustrations from paperback sci-fi of the 50s and 60s.
So I'm wondering, are Elon Musk and Lockheed's designers being influenced by all the illustrations they saw as kids? Or is this actually a very sensible to design planetary landers that was just lost in the Apollo era?