Every once in awhile, a bit of science crosses your path, and you think, yes, this is how we’re all going to die and our civilization as we know it will disappear. For instance, consider the fact that there are black spidery things on Mars and no one really knows what the deal is with them.

What are those things? They were first seen in 1998; they don’t look like anything we have here on Earth. To this day, no one is sure what they are, but we now know this: They come, then they go.

Did you hear that?? These things move.
[link to grist.org]

[link to news.yahoo.com]