Some of the most transformative breakthroughs in science history arrived wrapped in obscurity. Dr. Rosalind Franklin captured Photo 51—the X-ray crystallography image that revealed DNA’s double ...

The DNA inside our cells is constantly being damaged, and one of the worst kinds of damage is a double-strand break-when both sides of the DNA helix are cut at once.

Amino acids that were abundant since the prebiotic era are enriched in protein binding sites of the most ancient coenzymes, supporting the plausibility of an early coenzyme–peptide world.