On Facebook.com, hover the mouse over the Like icon. A pop-up box of reactions appears above it. In the mobile app, long press the Like icon to trigger the reactions to pop up. To see a breakdown of ...

Most people think that quantum theory, which describes the motion of molecules and atomic and subatomic particles, is counterintuitive, since quantum mechanics describes behavior at odds with ...

While testing a theory about how sugars formed on early Earth, researchers stumbled upon reaction conditions that produce tartrates, molecules closely related to others in a key metabolic cycle found ...

THE MUCH-SOUGHT-AFTER ability to pick and choose the bonds broken in a chemical reaction in the gas phase has been getting closer to becoming part of the chemists' repertoire over the past 20 years.

Most people think that quantum theory, which describes the motion of molecules and atomic and subatomic particles, is counterintuitive, since quantum mechanics describes behavior at odds with ...