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Space Rock Hints at Early Asteroid Furnace       
By Erik Stokstad
After a decades-long search for what melted these large
asteroids, researchers report in tomorrow's issue of Science (20 May,
p.1348) that a once-molten 4.57-billion-year-old meteorite bears the
unmistakable signs of radioactive heat.  Called Piplia Kalan after a 
nearby village, the 42-kilogram meteorite seemed a prime hunting ground 
for evidence of 26Al. 

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