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Radiation exposure may accelerate onset of Alzheimer's disease
Posted: Wed, Jan 2, 2013, 6:45 AM ET (1145 GMT)
Exposure to high-energy cosmic radiation on deep space missions could accelerate the onset of Alzheimer's disease and have other effects on the brain, scientists reported this week. Researchers exposed mice to levels of radiation similar to what astronauts would receive on a multi-year mission to Mars and then studied the effect the radiation had on the brain. They found an increased accumulation of beta amyloid, a protein "plaque" associated with Alzheimer's. The mice also showed signs of neurological impairment after exposure to the radiation. Scientists cautioned that the way the text was carried out, by giving mice a multi-year radiation dose in just a few minutes, could have exacerbated the effects of the radiation.
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news in brief
Progress undocks from ISS
Posted: Tue, Jul 22 9:02 AM ET (1302 GMT)

Soyuz launches research satellite
Posted: Sun, Jul 20 12:49 PM ET (1649 GMT)

news links
Wednesday, July 23
NASA Planetary Science Review To Be Released Soon
Space News — 7:25 am ET (1125 GMT)
4-Month Mock Mars Mission Wraps Up in Hawaii Friday
SPACE.com — 7:23 am ET (1123 GMT)
NASA Spacecraft Just One Year Away from Pluto
SPACE.com — 7:22 am ET (1122 GMT)


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