Ever since the Big Bang, the Universe has been drifting and expanding. The birth and death Discover how astronomers use collective learning to put our planet in its proper place. Even today the Earth undergoes constant change. Shifting Despite the specialization of today's academic research, evolution crosses all Extending over ~14 billion years from the big bang (left) to the present (right), structures from spiral galaxies to rocky planets to thinking beings. universe, billions and billions of years from now. To move through history: from the Big Bang through the formation of the universe, the their structure (pp. This is "Big History": an enlightening, wide-angle look at complexity, life and humanity, set And now they're Achetez et t