Astronomers use the term dark energy to refer to energy in the universe that is unaccounted for by ordinary matter but necessary to explain cosmology. Astronomy, however, isn't the only field with ...

A never-before-seen folding structure may have enabled early molecular evolution and the diversification of proteins Figure 1: A computer illustration showing the structure of a molecule of RNA ...

The search space for protein engineering grows exponentially with complexity. A protein of just 100 amino acids has 20^100 possible variants-more combinations than atoms in the observable universe.