Add Yahoo as a preferred source to see more of our stories on Google. If true, it could negate the need for some theories about the origins of water on Earth and, by extension, explain how Earth had ...

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 ...

Images: Carolin Dreher, Jeremiah Shuster Scanning electron microscope images of the spherical cyanobacteria Synechococcus sp.

(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 ...

A study published this week in Nature Communications posits that Earth's core holds a lot of hydrogen. The range is from nine to 45 oceans' worth of hydrogen, mostly locked up in the form of iron ...