Blue-light glasses were everywhere a few years ago, promising to save our screen-obsessed society from ourselves.

Hundreds of millions of Americans will have the chance in March to see the first total lunar eclipse in nearly three years.

Scientists using the Hubble Space Telescope have spotted a record-smashing galaxy wrapped in 9 rings of stars — along with ...

Our love affair with technology can wreck our vision and sleep, thanks to blue light. “The problem is that, with technology, we are being overexposed to blue light,” said ophthalmologist Dr. Rafael ...

Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye. You'll need a high-powered ... Read more: Full Moons Explained, From Blue Moons to Supermoons to Lunar Phases You won't have ...

Experts reveal why undereye circles persist and the treatments that actually work, from skincare to medical interventions. Here’s what to know.

From marking up notes to adding a pop of colour to doodles, the eye-catching ink ... which is why the ink appears blue. Highlighter pens contain chemicals that absorb visible light as well as ...

All but Uranus and Neptune are visible to the naked eye, but you will only need a small telescope and ... "It is a truly beautiful sight, especially when seen against the soft blue glow of dusk," ...

Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like ...

"The comet is fading, but how long it will remain visible to the naked eye is a little bit hard to ... back sunlight," NASA's post said. "The red, blue, and green tails are likely ion tails ...