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Ultraviolet

Researchers at Michigan State University claim to have a solar collector so clear that it ...

Researchers working at Michigan State University have created a completely transparent solar collector which is so clear that it could replace conventional glass in windows. The new devices – dubbed transparent luminescent solar concentrators – have the potential to not only turn windows into solar electric generators, but the screens of smartphones, vehicle glazing, and almost anything else that has a see-through surface.  Read More

NASA astronaut Rick Mastracchio prepares to test the ultraviolet light decontamination har...

The International Space Station (ISS) is perhaps the most artificial environment that human beings have ever taken up residence in. It’s not the sort of place where you’d want a lab accident, because you can’t run out the door and wait in the carpark for the air to clear, so NASA uses gloveboxes to keep the crew and equipment separate from dangerous contaminants. To increase this level of safety and expand the number experiments the station can carry out, the space agency is fitting one of the larger gloveboxes with an Ultraviolet Germicidal Irradiation (UVGI) system to to prevent potentially dangerous microorganisms from escaping.  Read More

The Hubble Space Telescope has taken a long-exposure picture of space in the ultraviolet, ...

A newly-released picture taken by the Hubble Telescope is adding more color to the Hubble Ultra Deep Field (HUDF) image by detecting thousands of galaxies in the ultraviolet spectrum. The study, called the Ultraviolet Coverage of the Hubble Ultra Deep Field (UVUDF), directly imaged stars and other celestial bodies that would have been impossible to observe on the ground, and gives astronomers critical information that will prove useful as the launch of the more powerful James Webb Space Telescope approaches.  Read More

The CHESS Sounding rocket (Photo:  NASA/WSMR)

In an experiment designed to look for the fundamental building blocks of matter in the dust clouds of interstellar space, NASA recently launched a high-altitude sounding rocket containing the Colorado High-resolution Echelle Stellar Spectrograph (CHESS) payload. Enabling scientists to carry out the most comprehensive single instrument study of its type ever conducted, the research promises to give new insights into the formation of stars.  Read More

Ultraviolet light causes a chemical reaction in the Smartsun wristband, alerting the weare...

Balancing a healthy amount of time in the sun while avoiding overexposure to its harmful UV rays can be a a difficult task. Indeed, the challenge of finding this happy medium has produced a bevy of of UV-detecting wristbands, such as the UVeBand and the UVA+Sunfriend. Smartsun is the latest to join the ranks of such devices, alerting users to dangerous levels of UV exposure by changing color from yellow to pink when it's time to head indoors.  Read More

The Confession Machine uses UV LEDs to print disapearing messages onto photosensitive pape...

Israeli artist Liat Segal has created a device that uses light to print fading messages onto photosensitive paper. The Confession Machine uses ultraviolet (UV) LEDs that are programmed to switch on and off at certain intervals in order to print people's confessions onto paper coated with a UV sensitive pigment. Then they disappear.  Read More

The UVA+B Sunfriend features LED lights that indicate when users have had a healthy dose o...

Most of us are aware of the dangers surrounding the amount of time we spend in the sun. Although we rely on exposure to sunlight to provide us with vitamin D, a lack of protection from harmful ultraviolet (UV) rays can lead to skin cancer. It can be a fine line between a healthy dose of sun and retreating indoors to coat ourselves in Aloe vera. The UVA+B Sunfriend aims to promote a healthy amount of sun exposure by alerting users when it is time to make for the shade.  Read More

Workers harvest sunscreen-producing bacteria from Norway's Trondheim fjord (Photo: Credit ...

The next generation of powerful sunscreens may have their roots in some unlikely sources – corals from the Great Barrier Reef and bacteria found in the Trondheim Fjord in Norway. When developed, these new sunscreens could offer protection across a wider band of ultraviolet (UV) radiation suspected to cause deadly forms of skin cancer, which current sunscreens don't protect against. The discoveries represent huge breakthroughs, made possible by harnessing the natural sunscreen abilities that these life forms have developed over millions of years to survive the harsh UV radiation in their respective environments.  Read More

Selective UV light keeps beautiful, lush strawberries that way even longer  (Photo: Shutte...

A truism as old as strawberry picking is the observation that the juicier and tastier the strawberries, the more quickly the berries turn to a mushy heap of rot and mold, even in the fridge. An answer to longer fruit storage may come with research showing that selective UV light inhibits both decay and the growth of mold. With new LEDs able to produce specific types of UV light, we might see gadgets for use in the fridge that keep produce fresher longer.  Read More

The UVeBand is a UVA and UVB-measuring wrist band, that vibrates when it's time to apply m...

If you spend much time outdoors in the summer, then you doubtless know how important it is to wear sunscreen. That said, you probably also know that just applying it once before you first go outside isn’t good enough – for sufficient protection from the sun’s ultraviolet rays, periodic reapplications are also necessary. The UVeBand is a new wearable device, that’s designed to let you know when it’s time for those reapplications.  Read More

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