New observations suggest your jewelry may have originated from colliding stars. Twinkle, twinkle! Pirates have hunted it. Monarchs have exploited it. Jewelers have sold it. But where did gold come from?
Man, that comet really reeks The final frontier smells a lot like a Nascar race—a bouquet of hot metal, diesel fumes and barbecue. The source? Dying stars, mostly. The by-products of all this rampant are