People have long wondered what life was first like on Earth, and if there is life in our solar system beyond our planet. Scientists have reason to believe that some of the moons in our solar ...

Introduction : The coherence of history / Stephen Jay Gould -- The planetary setting of prebiotic evolution / Sherwood Chang -- Early environments : constraints and opportunities for early evolution / ...

Scott Saleska receives funding from National Science Foundation, NASA, and U.S. Department of Energy. Ghiwa Makke receives funding from National Science Foundation and U.S. Department of Energy. Chris ...

The appearance of oxygen in Earth's atmosphere was a turning point in the history of our planet, forever transforming the environment and setting the stage for complex life. This event, known as the ...

Salt is an essential nutrient for the human body. But hundreds of millions of years before the first humans, salt minerals once shaped entire landscapes. They even determined where early life on Earth ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) James F. Holden, UMass Amherst (THE CONVERSATION) People have long wondered what life ...