Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

NASA’s Kepler data reveals HD 137010 b, a cold, Earth-sized candidate. Though freezing cold, it offers valuable insights into ...

The Cambrian Explosion in which life on Earth underwent massive diversification was likely triggered by eccentricities in Earth’s orbit around our Sun. Or so say the authors of a new paper just ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

Comparison of planetary atmospheres : Mars, Venus, and Earth / Michael McElroy -- Cosmochemical evolution and the origins of life / Cyril Ponnamperuma -- Origin of life : polymers before monomers? / ...

The evolution of planet Earth and the emergence of life during its first half-billion years are inextricably linked, with a series of planetwide transformations—formation of the ocean, evolution of ...

Earth’s ice ages have long been blamed on subtle wobbles in our own orbit, but new research suggests a distant accomplice is ...