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Carbon Dioxide Concentration in the Earth’s Atmosphere Has Hit Levels Unseen for 3 Million Years

The concentration of carbon dioxide in the Earth’s atmosphere has reached levels not seen for 3 million years, scientists at Mauna Loa Observatory in Hawaii said Monday – offering a dire warning about the impact of human activity on the ...

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Walnuts May Help Improve Central Blood Pressure in People at Risk for Cardiovascular Disease

Walnuts are a rich source of polyunsaturated fatty acids, including alpha-linolenic acid and the linoleic acid, and contain a proportionally greater quantity of polyphenolic compounds compared with other tree nuts and vegetable oils. In a new randomized, controlled trial, a ...

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The Moon Is Shrinking, and It’s Causing Powerful ‘Moonquakes’

The moon is getting smaller, which causes wrinkles in its surface and moonquakes, according to a new study. As the moon’s interior cools, it shrinks, which causes its hard surface to crack and form fault lines, according to research sponsored ...

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An Explorer Just Made the Deepest Ever Manned Sea Dive — and He Found a Plastic Bag

An American explorer who set a new record for the deepest ever manned sea dive says he saw a plastic bag and candy wrappers at the bottom of the ocean. Victor Vescovo, 53, visited Challenger Deep, which is the deepest ...

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Gold Nanoparticles Used to Create Smallest Ever Pixels

Nanopixels created by University of Cambridge researchers are a million times smaller than those in smartphone screens. The team’s work was published in the journal Science Advances. It has been a long-held dream to mimic the color-changing skin of octopus ...

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Mars Odyssey Examines Phobos in Infrared Light

On April 24, 2019, NASA’s Mars Odyssey orbiter captured a new thermal image of Phobos, the larger of Mars’ two moons. Each color in the full-moon image represents a temperature range detected by Odyssey’s Thermal Emission Imaging System (THEMIS) camera. ...

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Deep-Sea Fishes Catch Color with Rods

Some deep-sea fishes have developed highly sensitive color vision that could help them determine predator from prey in the dimly-lit depths. Color vision in vertebrates is usually achieved through the interaction of various photopigments in the cone cells found in ...

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NGC 3384: Hubble Looks at Stunning Lenticular Galaxy

The NASA/ESA Hubble Space Telescope has delivered an unrivalled snapshot of the barred lenticular galaxy NGC 3384. NGC 3384 was discovered by the British astronomer William Herschel on March 11, 1784. This barred lenticular galaxy is located approximately 35 million ...

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Researchers Find ‘World’s Oldest Wetland Tree’

Bald cypress trees (Taxodium distichum) over 2,000 years old grow in the forested wetlands along Black River south of Raleigh, North Carolina. One of the trees is at least 2,624-years old, making the bald cypress the oldest-known wetland tree species, ...

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Jeff Bezos Is Promising the Moon — But There Are Plenty of Reasons to Doubt Him

You may not have given a lot of thought to your plans for 2024, but more and more people in the space business have. For reasons not entirely clear, 2024 has become the big year for big promises. The trend ...

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