Planet Earth 2 is a nature documentary series that first aired on BBC One in 2016. Presented by British broadcasting legend Sir David Attenborough, each spectacular episode follows the challenges ...

The first layer is the crust, a thin outer shell that extends about 18 miles (30 km) below the planet's surface. The next layer, the mantle, stretches about 1,800 miles (2,900km) below Earth's ...

Earth, our home planet, is a world unlike any other ... Earth's surface is covered in oceans of liquid water that average 2.5 miles deep. These bodies of water contain 97 percent of Earth's ...

Planet Earth 2 has proven to be the breakout television success of 2016, with thousands of viewers tuning in from all over the world to watch Sir David Attenborough’s breath-taking nature ...

A distant planet has been dubbed Earth 2.0 after Nasa scientists said it was “the closest thing that we have” to a planet that could sustain life as Earth does. Whether you see the discovery ...