This is Planet Earth
Your ultimate guide to the world we call home
The Earth as you've never seen it before.
The ancient Greeks called it Gaia; the Romans Terra. We know it simply as Earth,
Formed around 4.6 billion years ago from the debris of the big bang and long-dead stars,
This is Planet Earth is dedicated to the wonders of planet Earth. Its past is long and dramatic and its future shrouded in mystery. Yet despite centuries of research,