Ultraviolet
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As tiny particles traveling at the speed of light, it’s going to take a serious machine to capture photons in action, and an international team of researchers have just pieced together one that is very much up for the job.
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Even though we're warned about the harmful effects of ultraviolet (UV) rays in sunlight, they're essential for the production of vitamin D in the body. Now, scientists are claiming that UV LEDs could serve as a safe alternative to sunlight.
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It’s human nature to be transfixed by clouds, and Jupiter offers some of the best cloud-watching in the solar system. Now, new Hubble images remind us why, revealing fresh storms brewing along with some intriguing changes to old ones.
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When suturing wounds within the body, there's a risk of damaging the tissue, and of the development of infections. A new surgical glue could reduce the need for sutures, though, plus it could close wounds faster while also delivering medication.
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A NASA spacecraft has observed a pulsing glow coming from Mars. Huge spots of ultraviolet light were seen in the night sky, pulsing with uncanny regularity – exactly three times every night. The find highlights the Red Planet's atmospheric processes.
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Powdery mildew is a widespread fungal disease that attacks many crops. And while it typically has to be treated using fungicides, special ultraviolet light-emitting robots could soon prove to be a better way to go.
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Bioplastics are already a more eco-friendly alternative to their petroleum-based counterparts. Now, scientists have created a clear bioplastic film that not only blocks harmful UV radiation, but that is also more airtight than traditional plastics.
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New research has for the first time demonstrated how exposure to Narrow Band Ultraviolet B light (UVB) can directly influence gut microbiome diversity in humans. The research hypothesizes this result is modulated by vitamin D.
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Although we've seen devices such as wrist bands that warn of UV exposure, users still have to, you know … look at the things. Glatus sunglasses instead verbally notify you, plus they'll reportedly let you know if you're too drowsy to drive.
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While we have some idea about what kinds of signs of life to look for on other planets, many of these can also be created under natural processes. Now NASA is about to launch a new mission that can help root out these false positives by studying the interactions between stars and their planets.
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Researchers from Harvard have shown that thin layers of silica aerogel could warm the surface of Mars and block UV radiation while still letting visible light through. That could be enough to keep water liquid and let plants photosynthesize within a given region.
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The hole in the ozone layer may be on the mend, but its environmental impacts are ongoing. A new review study has examined the effects that the extra UV radiation is having on the environment, such as shifting climate zones, changing ocean temperatures and making some species more vulnerable.
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