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Mars's crust may have sucked up most of the planet's water

Mars used to be covered in water, but it dried out billions of years ago. A lot of that water may have been irreversibly sucked up and turned into minerals in the ground ....

Bethany Ehlmann , Eva Scheller , California Institute Of Technology , California Institute , Red Planet , Planetary Science Conference , Mars Water , Solar System , ஈவா திட்டமிடுபவர் , கலிஃபோர்னியா நிறுவனம் ஆஃப் தொழில்நுட்பம் , கலிஃபோர்னியா நிறுவனம் , சிவப்பு கிரகம் , கிரகங்கள் அறிவியல் மாநாடு , செவ்வாய் கிரகம் , செவ்வாய் கிரகம் தண்ணீர் , சூரிய அமைப்பு ,

Destination Indiana: Celebrate SUE

Stand face-to-face with SUE the Tyrannosaurus Rex, one of the world’s most famous dinosaurs. ....

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Fermented Wool, Smell Memories, Cold Tolerance and More Mysterious News Briefly — March 12, 2021

Mysterious News Briefly March 12, 2021 The Pazyryk carpet, woven in 400 BCE, is the world’s oldest example of a knotted-pile carpet and its colors are still brilliant today, and the reason discovered recently by researchers using high-resolution x-ray fluorescence microscopy – is that weavers used fermented wool made from the roots of. Read more » ....

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Signs that Earth was once almost entirely molten found in ancient rock

Hanika Rizo
Chemical signatures in 3.7-billion-year-old basalt rocks from Greenland support the long-held theory that Earth was once almost entirely molten.
We know very little about what early Earth looked like – but one theory says that at several times it was almost entirely molten, a magma ocean. These oceans were probably caused by a series of massive impacts with other objects in our solar system that each generated enough energy to melt our planet’s interior. One of the last such collisions is thought to have formed the moon.
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Now, Helen Williams at the University of Cambridge and her colleagues have found evidence of these early magma oceans in ancient rocks. ....

United Kingdom , Kommune Kujalleq , Karina Shah , Hanika Rizo , Catherine Mccammon , Helen Williams , University Of Cambridge , University Of Bayreuth , Science Advances , Yearly Earth , Magma Ocean , ஒன்றுபட்டது கிஂக்டம் , கரினா ஷா , கேத்தரின் ம்க்கம்மோன் , ஹெலன் வில்லியம்ஸ் , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் , ஆரம்ப பூமி , மாக்மா கடல் ,

Earth's early magma oceans detected in 3.7 billion year-old Greenland rocks

Earth hasn’t always been a blue and green oasis of life in an otherwise inhospitable solar system. During our planet’s first 50 million years, around 4.5 billion years ago, its surface was a hellscape of magma oceans, bubbling and belching with heat from Earth’s interior.
The subsequent cooling of the planet from this molten state, and the crystallisation of these magma oceans into solid rock, was a defining stage in the assembly of our planet’s structure, the chemistry of its surface, and the formation of its early atmosphere.
These primeval rocks, containing clues that might explain Earth’s habitability, were assumed to have been lost to the ravages of plate tectonics. But now, my team has discovered the chemical remnants of Earth’s magma oceans in 3.7 billion year-old rocks from southern Greenland, revealing a tantalising snapshot of a time when the Earth was almost entirely molten. ....

Kommune Kujalleq , United States , Earth 39s Core , Earth 39s Crust , Earth 39s Mantle , Plate Tectonics , Volcanic Eruptions , ஒன்றுபட்டது மாநிலங்களில் ,