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I know some people who carefully shield their bodies from the sun with sunscreen and clothing, and their skin is extremely pale. But if tanning acts as a protector, is it actually safer to maintain a “healthy” tan? Chris EsseBeverly Hills, Calif. Scientists continue to debate this question vigorously. Some say any tanning indicates skin-cell […]
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Sunny Solution: Lotion speeds DNA repair, protects mice from skin cancer
Snippets of DNA that activate a cell's DNA repair process may protect mice from skin cancer caused by ultraviolet radiation.
- Planetary Science
Red Planet Makes a Splash: Rover finds gush of evidence for past water
A robotic rover on Mars has gathered what scientists are calling the best evidence to date that liquid water once flowed on the Red Planet.
