New data raises questions about how much the Earth has warmed

The new dataset, published in Earth System Science Data by 16 scientists, shows a significantly cooler Earth from the late ...
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Haunting images from photo prize show the ‘beauty and tragedy’ of our planet

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Interstellar comet 3I/ATLAS will fly by Earth Friday. Here are the latest images

Interstellar comet 3I/ATLAS will make its closest approach to Earth on Friday. New X-ray images could shed light on its composition.
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Near-Earth asteroid Bennu could hit Earth in 157 years and set off a global ‘impact winter,’ study says

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. If the near-Earth ...
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Four planets found orbiting a star 6 light-years from Earth

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. After decades of ...

Why the weirdest sea level changes on Earth are happening off the coast of Japan

In recent years, a major ocean current changed its path in two crucial ways. Now parts of the sea are rising, other parts are falling, ocean temperatures are breaking records — and Japan’s iconic ...
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A reservoir of gold lies hidden in Earth’s core. Scientists say it’s leaking

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Gold and other ...