The Register is a a satirical Onion-like site, with a weird mix of real and fake news -- they mix the fake stuff with the real stuff so it's hard to tell the difference. Just like Fox news! But The Register is funny.
Anyway, they posted a story about a real NASA project involving rovers, and threw in a few jabs at the hoax twinkies, and... well, just go read it yourself.
Hat tip to all the folks who sent me this link. :-)