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The bewildering shapes apparently owe their origin in large part to how rock can strengthen when squashed from above.
More than 18 dinosaur skeletons illegally taken from Mongolia were formally returned to their homeland during a ceremony in New York last week, U.S. authorities announced.
Scientists for the first time have gotten a glimpse of an elusive mineral, inside a 4.5-billion-year-old meteorite, and have named it bridgmanite.
The new substance will forever remain in Earth's rock record, researchers say.
Four-billion-year-old sample suggests modern-day Iceland is our best bet for an example of how Earth's continents first formed.
Scientists discovered dozens of well-preserved ichthyosaur skeletons in the vicinity of the Tyndall Glacier in the Torres del Paine National Park in southern Chile.
What were thought to be some of the oldest traces of life on Earth may not have been caused by life at all, new research suggests
Ancient fossils now reveal that the deep sea may be the origin of many lineages of sea creatures found closer to the surface, such as a number of sea stars, sea urchins and snails.
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