Experience the celestial spectacle of Dev Diwali 2025 in Varanasi — when the Ganga glows with millions of diyas, the gods descend to Earth, and devotion meets light. Varanasi ghats illuminated with ...

Nothing says happy holidays like a gift you put a lot of thought into for loved ones. We have pulled together a good mix of ...

Lasers that emit extremely short light pulses are highly precise and are used in manufacturing, medical applications, and research. The problem: efficient short-pulse lasers require a lot of space and ...

For decades, scientists have sought ways to compress the tools of optical science – lasers, lenses, mirrors – onto chips that fit on a fingertip. Such ...

A team of physicists from the University of Innsbruck and Harvard University has proposed a fundamentally new way to generate laser light: a laser without mirrors. Their study, published in Physical ...

Lasers are typically associated with precise beams and high-tech equipment. But the one built by Wang’s team works ...

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Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...

Scientists at Japan's Institute for Molecular Science have achieved a 1,000-fold enhancement in white-light generation inside water by using non-harmonic two-color femtosecond laser excitation. This ...

Using a laser-based device beyond the scope of her license got a Coral Gables electrologist “permanently restricted from operating laser or light-based devices.” That’s from the state Board of ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Not sure what to buy someone for a special occasion? We curated the 50 best gifts for any occasion, from kitchen appliances ...