Excitons—bound pairs of electrons and an electron hole—are quasiparticles that can arise in solids. While so-called "bright" ...

When millions of people turn off their lights for Earth Hour each year, something remarkable happens in the night sky above ...

Learn why researchers say artificial light at night might contribute to sleep disruption, metabolic disorders, and even mood ...

Uranus will also be on show, if you fancy a more challenging target. Early risers are in for a celestial treat on July 5, ...

They’re as bright as fireflies, but far harder to find. Still, experts say it’s worth seeking a glimpse of these stunning ...

The Maglite ML300LX Flashlight is on sale at Amazon for 48% off, and buyers say it's "the brightest Maglite" they've ever seen.

Summer is one of the best times to see a meteor shower. Here's why.

Right now, the Juyafio Rechargeable Flashlight is on sale at Walmart for the low price of $16. This product will meet all of your needs whether you have to change a tire in the dark, need additional ...

The best time to view the Perseids is between midnight and dawn, according to Hankey. However, one of the the best days to ...

Light exposure at night may disrupt our body's internal clocks, or circadian rhythms, that keep physiological processes ticking along ...

The Olight Arkfeld Ultra may be the last 3-in-1 EDC flashlight you'll ever need, just so long as you keep track of its charger.

While recent research shows the night sky is getting brighter every year across North America, the Big Bend area in Texas has ...