An iridium catalyst accomplishes the longstanding goal of adding hydrogen across alkyl-substituted carbon double bonds to generate homochiral products, a common reaction in organic synthesis.

Experiments and analysis on natural faults show that melt produced by friction during faulting weakens the fault, allowing sliding at lower stresses.

Motions of local and larger domain regions in a regulatory RNA allow it to take on different conformations, enabling it to bind to diverse targets.