Physicists at the University of Twente have improved the standard test for the quality of individual particles of light. By letting three photons interfere at the same time instead of two, they draw ...

A new wave equation suggests accelerating waves can move only toward positive time, offering a possible microscopic ...

Researchers used light to reveal the collective motion of electrons forming a Wigner crystal. Credit: Enrique Sahagún, Scixel / University of Basel, Department of Physics Optical measurements can ...

A teacher's creative classroom experiment explaining reflection and refraction of light has gone viral. Using a laser beam, ...

Since the 2000s, our light exposure has changed drastically as we make our buildings more energy-efficient. Now, we’re ...

Light isn't always the deciding factor in successful seed germination. The answer depends on characteristics that vary from ...

Photons traveling through a cloud of atoms can emerge so early that they appear to have spent a negative amount of time ...

Discover what everyday objects really look like under ultraviolet light in this surprising UV experiment. A powerful UV lamp ...

NASA's SR-71 Laser Air Data Sensor (LADS) experiments were ahead of their time, but could prove to have an influence on the F ...

Australia’s nuclear science and technology agency marked 20 years of operation this weekend for its multipurpose nuclear reactor at Lucas Heights in southern Sydney. OPAL, the Open Pool Australian ...

On Wednesday a total solar eclipse will pass over Iceland and other parts of Europe. Conducted on May 29, 1919, the Eddington experiment made the pages of Scientific American that same year. The ...

The United Kingdom Atomic Energy Authority's flagship fusion machine, MAST Upgrade, has completed its fifth round of experiments, during which it achieved the highest plasma pressure it has ever ...