As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was acquired during the planet’s formation.

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has mostly been here since the beginning ...

In A Nutshell Ancient frozen chemistry: New analysis of pristine samples from asteroid Bennu suggests its amino acids formed ...

Some of Earth’s earliest microbes evolved the ability to use oxygen hundreds of millions of years before it accumulated in ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary. James is a published author ...

Oxygen is a vital and constant presence on Earth today. But that hasn't always been the case. It wasn't until around 2.3 billion years ago that oxygen became a permanent fixture in the atmosphere, ...

On Mars or the Moon, researchers use high-resolution optical cameras to spot “skylights,” which are essentially holes in the ...

Was anyone else kind of hot last year? If so, there's a good reason for that, and it's likely that things are only going to get warmer going forward.

New satellite-based analysis explains how energy carried by Alfvén waves moves from Earth’s magnetosphere into the atmosphere to generate auroral light emissions.

Earth’s magnetic field and atmospheric oxygen appear to have moved in sync for half a billion years, pointing to a surprising connection between the planet’s deep interior and life-supporting ...

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...

Earth’s magnetic field feels steady and dependable, but over geological time it is anything but fixed. The magnetic north and south poles have swapped places many times in the planet’s history in ...