Engineers from Sierra Space, a private company, have developed a machine designed to extract oxygen from lunar soil, also ...

Certain metallic rocks seem to be making oxygen in the dark, without light or sunshine, at the bottom of the ocean.

The new research got its start as a desire to understand the relationship between oxidation states in Earth’s oceanic crust and mantle, as well as oxygen-related variations in peridotites ...

with little or no free oxygen. Iron sinks deep inside Earth and forms its core. Lighter elements like silica, magnesium, and aluminum rise to the surface, and later harden to form the outer crust.

Stable parts of the Earth's crust may not be as immovable as previously thought. While much of the crust is affected by plate tectonic activity, certain more stable portions have remained ...

Specifically, the blue-green algae (or cyanobacteria) that emerged and proliferated about 2.4 billion years ago would have been able to produce more oxygen as a metabolic by-product because Earth ...

The Earth has a layered structure made up of the core, the mantle and the crust. Different elements are present in different parts of the Earth’s structure. The crust is made from enormous ...