Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...

The earth is ever present in the film, wildlife, rivers and marshes, sagebrush desert, all part of the story. The lifeways of the Northern Paiutes are followed through a seasonal cycle ...

It’s the only home we have. I wrote the book with a sense of sorrow, of wanting to almost memorialise both the space station as a peace project and Earth as our home and as something ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet ...

There are more planets in our universe than grains of sand here on Earth and so far life has only ... facing mutiny at home: how long before Iran goes nuclear? I saved £30,000 in 2 years ...

Narrator: 4 and a half billion years ago, clouds of cosmic dust and gas which were orbiting the Sun collided into one another, creating the Earth, our planet, the home of mankind. It spins at 1000 ...

Its gravitational pull is slowing the Earth’s rotation—a process called tidal braking—which is increasing the length of our day by 2.3 milliseconds per century, according to the BBC.