High-tech investors have been excited recently about the rising value of Bitcoins. But they are not just a collectible for computer nerds. More and more, small businesses are getting in on the Bitcoin rush.
You may have heard it before: Billions of years ago, Mars probably looked more like Earth does now, with clouds and oceans and a much thicker atmosphere. It may even have had some type of microbes. But now it's a barren, frozen desert.