Let's give three cheers for NASA, our robots are on Mars
Because we are American they look like shiny cars
They're brave and uncomplaining as they trundle here and there
They take a lot of pictures and they have no need for air
As we go forth into the void our robots lead the way
Put on your 3-d glasses and behold the Martian day!
Read their LiveJournals here and here.
But even robots have their limits...