"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: All life on Earth can be traced back to a Last ...

The question of when life began on Earth is as old as human culture. “It’s one of these fundamental human questions: When did life appear on Earth?” said Professor Martin Whitehouse of the Swedish ...

Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. The exact sequence of events behind eukaryogenesis is ...

the Earth you walk on today might not be the same planet that was born 4.5 billion years ago. Many scientists believe that in its infancy, Earth collided with another world the size of Mars, and that ...

Biology again transformed the planet when the life that expanded onto land 400 million years ago gave a biological boost to the chemical and geological process known as weathering. Weathering occurs ...

Earth is so far the only known planet on which life exists—with liquid water and a stable atmosphere. However, the conditions were not conducive to life when it formed. The gas-dust cloud from which ...

Scientists have figured out how proteins may have been created on early Earth. When a bone grows, our bodies’ proteins help provide the structure. When a muscle tears, proteins help rebuild it. When ...

Plants, plankton and sea spray all release elements that help the atmospheric blankets form Max G. Levy The view from a research aircraft that scientists use to collect data from high in Earth’s ...

Gravity is the unseen force that shapes the universe, yet we rarely give it much thought. First explained by Sir Isaac Newton, it is the pull that draws objects toward one another based on their mass ...