In this special documentary that inspired a two-season television series, scientists and other experts speculate about what the Earth, animal life, and plant life might be like if, suddenly, humanity no longer existed, as well as the effect humanity's disappearance might have on the artificial aspects of civilization.
A look ahead at the cataclysmic events that could extinguish the human race.
Highlights boy bands and their rise — and fall — to fame, from The Beatles to Jackson 5 to the Jonas Brothers and One Direction, as well as the K-pop group Seventeen.
