Asteroid mining could be worth trillions

According to Goldman Sachs, asteroid mining has the potential to produce the world's first trillionaires. The asteroids that pass us by on a regular basis might not seem particularly valuable, but inside many of these spacefaring rocks there lies a fortune in gold, platinum and other minerals that could actually make space mining an extremely viable commercial venture. Last year, investment banking firm Goldman Sachs published...

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Hawaii 'lava dome' revealed in throwback image

This remarkable dome of churning molten magma was photographed in Hawaii by the US Geological Survey.The incredible spectacle, which climbed as high as 65ft over a period of three days, was captured on camera during the 5-year-long Mauna Ulu eruption of Hawaii's Kilauea Volcano back in 1969.Lava fountains like this one occur when gas bubbles from vents, fissures and lava tubes rapidly form and cause a huge jet of lava to shoot up in...

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