The extreme speed at which light moves, and the fact that photons do not tend to interact with transparent matter, is of enormous benefit to mankind. It allows us to see deep into the Universe and to ...

Thank you to everyone who hosted watch parties and celebrated National Chemistry Week 2025 with us! If you were unable to attend live, ACS invites you to use the recording of this year's event ...

Plant responses to light are multiple. Light is an energy source, converted to sugars by photosynthesis. It is also a signal sensed by specific photoreceptors for red, blue and UV-B radiation. Absence ...