All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA—and it likely lived on Earth only 400 ...

Experiment may help explain the ‘most intriguing causal paradox in biology’ about how early life forms came together about 4 ...

The study finds life’s origin faces severe mathematical challenges. Chance alone may not be enough. A new study addresses one of science’s most enduring questions: how did life first arise from ...

Scientists discovered chemical reactions that place amino acids on tRNAs and extend peptide chains without enzymes, a key ...

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 ...

(THE CONVERSATION) 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 ...

Similar deep-sea volcanoes found on Earth support microbial life that lives inside solid rock without sunlight and oxygen. Some of these microbes, called thermophiles, live at temperatures hot ...