Home (2007) - FAQ
Frequently asked questions about this film.
How long ago did life first appear on Earth?
Life appeared around 4 billion years ago.
What are archeobacteria?
Archeobacteria are primitive life forms that exist in the globe's hot springs and feed off the Earth's heat.
What is the role of cyanobacteria in the Earth's atmosphere?
Cyanobacteria, or blue-green algae, have the capacity to capture energy from the sun and are vital ancestors of all plant species.