Where did all the water come from? Water, water everywhere. It covers 70% of Earth’s surface and earns it the nickname “the blue planet.” And yet … where did it come from? How is it so abundant on our ...

Let's explore seven unsolved mysteries about the Earth. Origin of Life: The exact process that turned simple chemicals into first living organisms is still unknown. Missing Baryons: Despite extensive ...

We know Earth is old. Scientists estimate that our planet formed around 4.5 billion years ago. But how old is it exactly? And what was it like when our planet was still forming? These questions have ...

This artist’s concept of the Earth’s core shows the inner core in red, the outer core in blue, and the donut in red. The donut region contains more light elements around the equator. Image via ...

Let’s explore some of the greatest scientific mysteries that continue to puzzle scientists, despite years of investigation. Consciousness: The mechanism through which the brain generates thoughts and ...

Finding water on distant planets and moons in our solar system is a challenge, especially when the instrument is thousands of kilometers away from the surface, but scientists presenting at the ...

…and sometimes we may forget just how incredible our home of planet Earth really is. From towering waves to supervolcanos, there is so much more to Earth than the basics we're taught in school. Get ...

Add Yahoo as a preferred source to see more of our stories on Google. Pacific Ocean - A view of the Pacific Ocean from the Santa Monica Pier in California. Where did all the water come from? Water, ...