It's a breathtaking scenario. Hundreds of petrol-heads roaring across some of South America's most stunning landscapes in a grueling two-week endurance race where the competitors are at the mercy of treacherous terrain.
Richard Villaroel holds up a red plastic bottle cap, the diameter of which is no bigger than two of his fingers. Three-quarters full of canned tuna or salmon -- that's how little he ate every day in the Chilean mine that caved.
Now that 33 miners who have been trapped in the earth for 19 days have been found alive, the focus is shifting to their physical and mental health as they face a potentially long period before being rescued.
Thirty-three miners trapped underground in Chile sent a note on Sunday saying they are alive, raising hopes for the first time in the nearly three weeks since the mine collapsed, but officials cautioned it could take months to rescue the workers.
An ambitious project to build the world's largest radio telescope high in the Chilean Andes looks set to give astronomers their best ever view of deep space -- and provide them with a dramatic window back through time to the formation of the universe itself.