Here's a product we can really warm up to: a knit hat and matching gloves with built-in solar panels. No, not your typical bulky (and dare we say, ugly) solar panels, but cheerful little snow-flake shaped panels that convert sunlight...

It's kind of hard to imagine this thing flying at all, really, but the folks over at Aurora Flight Sciences say that their conceptual surveillance craft, the Odysseus could zip around at an altitude of 60,000 to 90,000 feet for...