Tag Archives: rovers

Nor all water suitable for microbial life. So seems to be the early conclusions of Spirit and Opportunity’s explorations on Mars. But they’re not definitive, and more work by more rovers is yet to come. The great thing is that it’s all been done by robots, and relatively inexpensively. Someday, when humans do set foot on the Red Planet, they’ll land at spots that have been thoroughly investigated and found to be the best candidates for habitation.