How Much Do You Know About Our Planet Earth?

We have been observing Earth for 40 years now, in the last 20 we have focus with intensity on the planet with new technologies and capabilities, and we have accumulated a mass of data that is now revealing a complex and ever-changing living planet.

Space is vast; yet it is full of collisions; gas and dust electrotatically flock together, gravity takes over coalescing grains into rocks, rocks into boulders then asteroids colliding again and again, striking planets and each other. Stars collide creating monsters of light and energy even galaxies collide over millions of years, space is a rough place to be.