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Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists used a new technique to estimate the abundance of hydrogen in Earth’s core. - Tumeggy/Science Photo Library RF/Getty ...

Ice cores, tree rings, and satellite data converge on a striking truth: Earth’s rapid changes today are unlike anything seen in human history. When most people hear the term Earth science, they think ...

For more than 25 years, humans have lived and worked continuously aboard the International Space Station, conducting research that is transforming life on Earth and shaping the future of exploration.

Thermal controls within the sealed payload kept the chamber near 30 °C, allowing the pupa to complete metamorphosis. The ...

April brings us Citizen Science Month and Earth Day—that means it’s the perfect time to get outside, explore nature, and even help real scientists with their research! You don’t need to be an expert, ...

(CNN) — Picture all of Earth’s oceans, which cover about 70% of the planet and are mostly made of hydrogen. Now multiply that by nine. That may be the amount of hydrogen in Earth’s core, possibly ...