Everyone knows the Earth has constantly evolved over the course of billions of years, and the natural landscapes we see today ...

Scientists have discovered evidence that Earth's oceans were once green, hinting that this could be a marker of early life, ...

Ancient oceans, which were heavy on iron, interacted differently with light wavelengths, retracting green light into the ...

But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that ...

New research suggests tiny electrical charges in water droplets could have fueled the chemical reactions that led to life.

The Earth’s mantle, stretching up to 1,800 miles thick and making up a whopping 84% of the planet’s volume, used to be ...

Earth was so cold at the time that the oceans were frozen all the way to the ... all of which may have contributed to the early development of life, the University of Portsmouth said in a release.

Critics of this hypothesis argue that the oceans were—and still are—too ... an electrical current to a mixture of water and Earth’s early inorganic gases, including methane, ammonia, and ...

Around 700 million years ago, Earth was ... ocean became enriched in minerals, the prevailing hypothesis was that this was the product of an oxygenating planet. As early cyanobacteria produced ...

Study discovered that tiny electrical sparks, called microlightning, form when water droplets collide. These can create organic molecules.