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Sun’s Sibling Stars Could Host Cousins of Earth Life
Some scientists are searching not just for any life out there in the universe, but for our distant relatives....
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Fossilized Raindrop Dimples Add to Mystery of Ancient Earth’s Warmth
Pumice-like cratery indents formed by ancient raindrop splats are adding to the mystery of why the adolescent Earth was...
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Geologists Correct a Rift in Africa
The Great Rift Valley of East Africa – the birthplace of the human species – may have taken much...
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Findings Cast Doubt on Moon Origins
The moon, that giant lump of rock that has fascinated poets and scientists alike, may be about to get...
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Planets Hurtling Near the Speed of Light? It’s Possible
Scientists want to know if planets can form near the supermassive black hole at the core of the galaxy....
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Discovery Sheds New Light on Wandering Continents
A layer of partially molten rock about 22 to 75 miles underground can’t be the only mechanism that allows...
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Early Earth Had Periodic Organic Haze
The early Earth flipped back and forth between a hydrocarbon-free atmosphere and a hydrocarbon-rich one similar to that of...
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Did Life on Earth Come From Mars?
Given the same raw materials, Mars would have been a better host for life to arise than Earth, which...
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The Evolution of the Moon in Three Minutes
In celebration of 1,000 days in orbit, the Lunar Reconnaissance Orbiter team released two beautiful videos of our moon,...
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New Evidence That Asteroid Hit Earth 13,000 Years Ago
New evidence supports the idea that a huge space rock collided with our planet about 13,000 years ago and...