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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.
By John Travis -
Planetary ScienceRed 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.
By Ron Cowen -
ChemistryClean hydrogen fuel from corn?
A new reactor can convert ethanol from corn into hydrogen fuel with enough efficiency to make the process economical.
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TechSilicon goes optical
The advent of a fast, light-manipulating microdevice made from silicon suggests that speedy optical-fiber links now too expensive for broad use in businesses and homes may soon become widespread.