RNA-DNA Chimeras Might Have Supported the Origin of Life on Earth
RNA-DNA Chimeras Might Have Supported the Origin of Life on Earth
A new study finds mixtures of nucleotide types, rather than pure systems, are more likely to yield the building blocks of life.
RNA-DNA Chimeras Might Have Supported the Origin of Life on Earth
RNA-DNA Chimeras Might Have Supported the Origin of Life on Earth

A new study finds mixtures of nucleotide types, rather than pure systems, are more likely to yield the building blocks of life.

A new study finds mixtures of nucleotide types, rather than pure systems, are more likely to yield the building blocks of life.

early life
Signs of Ancient Microbial Life Questioned
Signs of Ancient Microbial Life Questioned
Abby Olena | Oct 17, 2018
New findings cast doubt on previous claims that structures found preserved in rocks in Greenland are stromatolites, but the original authors say the discrepancy lies in different samples.
Ancient Microfossils May be Earliest Signs of Life
Ancient Microfossils May be Earliest Signs of Life
Diana Kwon | Mar 2, 2017
Researchers find what appear to be 3.77 billion-year-old hints of microbial life hidden in Canadian rocks, but some scientists are not convinced.
Pondering Photosynthesis
Pondering Photosynthesis
Tracy Vence | Sep 30, 2013
New research uncovers previously unappreciated insights into the evolution of the well-studied energy-producing process.
Book Excerpt from <em>Cosmic Apprentice</em>
Book Excerpt from Cosmic Apprentice
Dorion Sagan | Jul 31, 2013
In Chapter 9, “Life Gave Earth the Blues,” author Dorion Sagan addresses the planet’s exuberant color palette, evoking the contribution of industrious microbes.