How does the Earth travel around the sun ... videoHow do we explore space? In this video a group of children learn all about those who have explored space in the past and what they found out.

Cameras in space tell stories of life on our planet from a brand new perspective, revealing new discoveries, incredible colours and patterns, and just how fast it is changing.

This includes the demarcation between Earth and space itself, called the Karman ... A previous version of this post misstated the travel time to the moon at the speed of a 747 jet airplane.

Earth is moving much faster ... system would take about 230 million years to travel all the way around the Milky Way. The Milky Way, too, moves in space relative to other galaxies.

A timelapse of the Earth's limb – or horizon – from the International Space Station offers a mesmerizing view our planet. Produced by Maya Dangerfield. Special thanks to Dave Mosher.

As a result, scientists are increasingly monitoring Earth from space. NASA alone has dozens of missions dedicated to solving our planet's mysteries. At the same time, telescopes are gazing outward ...