Molecules that combine elements of RNA and DNA, so-called chimeric molecules, may have been an important step in the emergence of life on Earth from the primordial ... lifeforms—commonly thought to be ...

Researchers seeking to understand how life may have emerged from Earth’s primordial soup have found an interesting behavior ...

To disclose the RNA World Hypothesis and the “secrets” of the origin of life on Earth (and elsewhere?), the first step is to understand how and where the small prebiotic molecules could form with ...

Researchers have innovatively merged protein structural data with genetic sequences to construct evolutionary trees, ...

In a new peer reviewed analysis, scientists quantify amino acids before and after our “last universal common ancestor.” The ...

For example, DNA and RNA, the molecules that encode genetic ... of this discovery are far-reaching. If the first life forms on Earth were not bound by a preference for “left-handed” amino ...

Discover how scientists blend biology, synthetic biology, and astrobiology to speculate on alien life forms, focusing on the ...

You’ll go on a journey through billions of years of evolutionary history to see how RNA may have allowed life to form on Earth ... folding game Foldit, the first open online game that lets ...

Each imagined the young Earth as a huge chemical factory ... chemical processes to make substances such as RNA. He argues that these processes must have arisen first, not the substances themselves.