INTEGRAL Helps Unravel Tumultuous Recent History Of The Solar Neighborhood

INTEGRAL Helps Unravel Tumultuous Recent History Of The Solar Neighborhood
Just like archaeologists, who rely on radioactive carbon to date the organic remains from past epochs, astronomers have exploited the radioactive decay of an isotope of aluminum to estimate the age of stars in the nearby Scorpius-Centaurus association, the closest group of young and massive stars to the Sun. The new observations, performed in gamma rays by ESA’s INTEGRAL observatory, provide …
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This is a Backgrounder On Health Care
Not Enough Doctors? Too Many? Why States, Not Washington, Must Solve the Problem
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RISING STAR: Nothing slows woman motivated to make difference
Karalee Pelham Oldenkamp is a very busy woman. Nothing seems to be able to slow her down much — not even breast cancer.
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