News tagged with ultraviolet
New role for the JNK protein
Put simply, a tumor is the result of out-of-control cell growth. To assure that the cell cycle - the cell's process of duplicating itself to make more cells - goes smoothly, a large network of proteins tells other proteins ...
Jul 14, 2010 |
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Hubble snaps sharp image of cosmic concoction (w/ Video)
(PhysOrg.com) -- A colourful star-forming region is featured in this stunning new NASA/ESA Hubble Space Telescope image of NGC 2467. Looking like a roiling cauldron of some exotic cosmic brew, huge clouds ...
Jul 13, 2010 |
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Expert: Sunscreen just the first step to skin protection
(PhysOrg.com) -- Applying sunscreen is a summer ritual for Americans hoping to protect their skin from burns, wrinkles and cancers. But researchers have raised questions about the safety of some sunscreens.
Jul 09, 2010 |
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HPV infection linked to increased risk of skin cancer
HPV infection heightens the risk of developing certain skin cancers and is worsened if people are taking immunosuppression drugs, according to a new study published in the British Medical Journal today.
Jul 09, 2010 |
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Image: Starburst Cluster Shows Celestial Fireworks
(PhysOrg.com) -- Like a July 4 fireworks display, a young, glittering collection of stars looks like an aerial burst. The cluster is surrounded by clouds of interstellar gas and dust—the raw material for new ...
Jul 06, 2010 |
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UVA radiation damages DNA in human melanocyte skin cells and can lead to melanoma
A new study by researchers at NYU School of Medicine found that UVA radiation damages the DNA in human melanocyte cells, causing mutations that can lead to melanoma. Melanocytes, which contain a substance called melanin ...
Medicine & Health / Medical research
Jul 01, 2010 |
4.5 / 5 (2) |
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Bumble bee visits a fritillary
Bumble bees can see which fritillary has the most nectar. Pollination by the bees protects plants against moulds.
Jun 25, 2010 |
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More than skin deep, tanning product of sun's rays
People who remain pale and never tan can blame their distant ancestors for choosing to live in the northern reaches of the globe and those who easily achieve a deep tan can thank their ancestors for living in the subtropical ...
Jun 21, 2010 |
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Study shows adding UV light helps form 'Missing G' of RNA building blocks
For scientists attempting to understand how the building blocks of RNA originated on Earth, guanine -- the G in the four-letter code of life -- has proven to be a particular challenge. While the other three ...
Jun 14, 2010 |
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Man-made aurora to help predict space weather
(PhysOrg.com) -- For more than 25 years, our understanding of terrestrial space weather has been partly based on incorrect assumptions about how nitrogen, the most abundant gas in our atmosphere, reacts when ...
Jun 08, 2010 |
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Mars Contamination Dust-Up
A new study finds that microbes on spacecraft might be able to survive on Mars longer than previously thought. The key to their survival? Dust.
Space & Earth / Space Exploration
May 19, 2010 |
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Asteroid Caught Marching Across Tadpole Nebula
(PhysOrg.com) -- A new infrared image from NASA's Wide-field Infrared Survey Explorer, or WISE, showcases the Tadpole nebula, a star-forming hub in the Auriga constellation about 12,000 light-years from Earth. ...
May 13, 2010 |
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Chromosome's Guardians Susceptible to UV Radiation, Scientists Find
(PhysOrg.com) -- The molecular caps at the ends of chromosomes that protect humans against cancer and premature cellular aging show a surprising inability to protect themselves against ultraviolet radiation, ...
Apr 30, 2010 |
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NASA's New Eye on the Sun Delivers Stunning First Images (w/ Video)
(PhysOrg.com) -- NASA's recently launched Solar Dynamics Observatory, or SDO, is returning early images that confirm an unprecedented new capability for scientists to better understand our sun’s dynamic processes. ...
Space & Earth / Space Exploration
Apr 21, 2010 |
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Proba-2 shows solar eruption that touched Earth (w/ Video)
(PhysOrg.com) -- Polar skies glowed with ghostly auroras last week during the biggest geomagnetic storm of 2010. The event owed its origin to a solar eruption a few days earlier -- revealed here in high-speed ...
Space & Earth / Space Exploration
Apr 14, 2010 |
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