A new photoelectrode can harvest 85 percent of visible light in a 30 nanometers-thin semiconductor layer between gold layers, converting light energy 11 times more efficiently than previous methods, another step on the road to turning solar power from an expensive subsidized sideshow into the default energy of the future.
Bumblebee safety alert; don't put holograms in that meadow or near the urban beehive you probably regret buying.  A new study shows that bees, which are already confounded by lots of different things, are mystified by iridescent colors, colors that seem to change based on the angle you view them from. Like bubbles do.
Physicists from the ATLAS experiment at CERN have confirmed one of the oldest predictions of quantum electrodynamics (QED), finding the first direct evidence of high energy light-by-light scattering, a very rare process in which two photons – particles of light – interact and change direction.

Two new studies can't prove a link between childhood cancer and light therapy for newborn jaundice but the authors say it still raises enough questions that clinicians should exercise caution in prescribing the treatment for infants whose jaundice is likely to resolve on its own, though that should not deter use of the treatment, known as phototherapy, in babies who otherwise would be at risk of brain damage or hearing loss.

Photosynthesis, vision, and many other biological processes depend on light, but it’s hard to capture responses of biomolecules to light because they happen almost instantaneously.

Most of us think nothing of rainfall or where it goes, unless it leads to flooding or landslides. But soil scientists have been studying how water moves across or through soil for decades. Daniel Hirmas, a professor at University of Kansas, and his team may be taking the study of soil hydrology to some exciting new territory. Territory that may help soil scientists manage water resources better.

Why is Hirmas trying to predict water movement in soil?

"There are a number of reasons why more accurate predictions of water flow is important. Better management of water resources is one," Hirmas says.

Researchers have managed to 'pluck' a single photon, one particle of light, out of a pulse of light. 

Since their first use in the 1960s, there has been a tremendous expansion of laser technology into an impressively wide range of uses, from fundamental science, health care and security to entertainment. Since Theodore Maiman’s first working laser at the Hughes Research Laboratory in 1960 more than 55,000 patents on laser technology have been filed in the United States alone.

In several years - in perhaps decades, or maybe never - our computers, nanoantennas and other kinds of equipment could operate on the base of photons, rather than electrons. Even now we are practically prepared to accomplish this switch. If it happens, the spheres studied by an international group of Russian, French and Spanish scientists will definitely be able to become one of the elementary components of new photonic devices.

The Institute of Laser Engineering (ILE), Osaka University, has succeeded to reinforce the Petawatt [3] laser "LFEX" to deliver up to 2,000 trillion watts in the duration of one trillionth of one second (this corresponds to 1000 times the integrated electric power consumed in the world). By using this high-power laser, it is now possible to generate all of the high-energy quantum beams (electrons, ions, gamma ray, neutron, positron).