How do gold nuggets form? Earthquakes may be the key
Scientists have finally solved a long-standing mystery about the geologic process behind these large pieces of gold found in quartz rock.
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Author: Robin George Andrews
The surface of the moon is hostile. A newly found cave could be a lifesaver.
The recent discovery of a lunar lava tube hints at a hidden network of caves that could provide shelter for future explorers.
Read MoreWhy The US Once Bombed An Erupting Volcano
Can using explosives to divert volcanic destruction actually work? The first try in Hawaii set the stage for more attempts, but conditions for success are extremely rare.
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