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

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

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 ...

As the most intense star-forming region in the Local Group, 30 Doradus is of particular importance to astronomers.

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

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," ...

A shortcut for New Yorkers to spot some of the planets is to look for them when they are near the moon. On Feb. 1, Venus will ...

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 ...

I had to stop to investigate it." In reality, this striking pattern formed 50 million years ago, when a small blue dwarf galaxy (visible in the image to the center-left) ploughed through the ...

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

"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 ...