Geology
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A new simulation video from Herrenknecht AG shows off its Urban Vibro Trucks. The machines can deploy thumping devices from their mid-sections that send seismic waves beneath city landscapes to explore the terrain for geothermal development.
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The hot interior of planets isn’t somewhere you’d expect to find snow, but “iron snow” could fall on Earth’s core. A new study has modeled the dynamics in the lab and found that iron snow could make magnetic fields switch on and off in some planets.
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We only have to look up at the Moon to see the remains of a cataclysmic collision between two early planets, billions of years ago. Evidence may also be beneath our feet, as scientists suggest the remains of that ancient planet lurk near Earth’s core.
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The cascading effects of a giant asteroid impact is credited for killing off the dinosaurs. Now scientists have identified a new factor – fine silicate dust that hung in the atmosphere for well over a decade, blocking sunlight and cooling the planet.
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Scientists from Caltech and WHOI have found evidence that Earth’s core is leaking. High levels of a particular isotope of helium were found in lava flows in Canada, which the team proposes originated in the planet’s core.
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About 66 million years ago, the reign of reptiles came to a dramatic end. Scientists have now predicted that mammals will meet their maker in a similar cataclysm in about 250 million years’ time, as the continents collide to form a new supercontinent.
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Scientists have found a massive area the size of 1.5 football fields, now dubbed "The Coliseum," which was once a popular thoroughfare to water for multiple species of prehistoric beasts over many generations some 70 million years ago.
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A new genus and species of ancient sea worm with an impressive set of star-shaped chaetae has been identified, after its fossil first puzzled paleontologists. Thanks to its alien-worm-like appearance, scientists found a fittingly sci-fi name for it.
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If you’ve ever felt like you need more hours in the day, well how does 60 sound? A new study suggests we’d have 60-hour days by now if a stalemate between the Sun and Moon hadn’t interfered with Earth’s rotation for over a billion years.
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The Earth’s inner core is incredibly tricky to study, since it’s buried beneath thousands of miles of rock. New seismic studies suggest that it’s not just a solid ball of iron, as has been assumed, but might have pockets of liquid iron throughout.
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Using microwave instruments to peer deep beneath the surface of the far side of the Moon, researchers have detected a ‘hotspot’ they say is a large subsurface granite mass, suggesting the Moon is more "Earth-like" than we thought.
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As far as landscapes go, Mars is pretty dull – it’s mostly just rocks and craters. But now the Perseverance rover has spotted a couple of particularly weird rocks that have been hollowed out in eerie shapes.
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