Light

Clouds or sugar cubes block light because they’re disordered media that scatter light waves. Now scientists have found a way to manipulate light waves to pass through, projecting an image on the other side as clearly as if the obstacle wasn’t there.

Two years ago, astronomers revealed the first-ever direct images of a black hole. Now, the collaboration behind the historic image has released a new version that shows the polarization of the light around the object.

Yale researchers have found evidence that worms can detect the color blue – even though it doesn’t have eyes or any kind of visual system. In tests, the team found that the color of harmful bacteria influenced whether or not the worms avoided them.

Usually optical coatings either reflect or transmit a given color of light, but now researchers at the University of Rochester have developed a new class of optical coating that can both transmit and reflect the same wavelengths at the same time.

How many galaxies are there in the observable universe? Not as many as we thought, according to a new study. NASA’s New Horizons probe has measured the blackness of the sky and found that there’s probably “only” a few hundred billion faint galaxies.

When taken orally or intravenously, medications typically travel throughout the body, producing unwanted side effects. MIT scientists are working on an alternative, that delivers both light and a light-activated drug directly to the target area.

Astronomers have precisely measured the distance to the oldest and farthest known galaxy. Light left GN-z11 around 13.4 billion years ago, when the universe was a cosmic toddler, meaning this galaxy marks the very edge of the observable universe.

Researchers at Lancaster University have developed a new material that can store energy for months, and potentially years, at a time. The material can be activated by light, and then release the pent-up energy on demand in the form of heat.

A simple home test for breast cancer and a UV energy-harvesting window made of recycled materials are the big winners of this year’s James Dyson Awards. The annual competition encourages university students to develop innovative solutions to problems.

We've seen a few learning systems that help students to learn at their own pace by having them follow lights to form chords on a guitar or nail songs on a piano keyboard. The latest from Yamaha to do so is the EZ-300, which comes with songs built-in.

Astronomers at Ohio State University have taken the mean temperature of cosmic gas at different distances and ages, and found that it’s roughly 10 times hotter today than it was 10 billion years ago, thanks to the evolution of galaxies and clusters.

An Alphabet X innovation lab project has been working on a high-speed wireless optical communications network that uses beams of light instead of cables or radio waves, and folks in Kenya will be the first to benefit from the fruits of these labors.