Rocks that formed some 3.7 billion years ago in the early Archean have given us the earliest glimpse yet of Earth's magnetic field. That was a time when Earth may have been still wrapped in water ...

A stunning discovery on Mars has revealed the longest organic molecules ever found on the planet—carbon chains that could ...

Dave Ramsey has blunt words on your 401(k) and IRA for retirement Ukrainian F-16 pilot says Russia's battlefield actions show its troops think NATO jets are higher quality and fear them China ...

Bacteria used oxygen far earlier than expected, reshaping views on early life, evolution, and photosynthesis origins.

Earth is about 4.5 billion years old. Scientists think that by 4.3 billion years ago, Earth may have developed conditions suitable to support life. The oldest known fossils, however, are only 3.7 ...

Perhaps the most compelling reason to understand “deep-time” climate change is in how it relates to the origin and evolution of life on Earth ... 3.9 to 2.5 billion years ago (Bya) (Figure ...