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Particles Point Way for NASA's Voyager
from the BBC News Online
Scientists working on Voyager 1 are receiving further data suggesting the probe is close to crossing into interstellar space. The NASA mission, which launched from Earth in 1977, could leave our Solar System at any time.
It is now detecting a sharp rise in the number of high-energy particles hitting it from distant exploded stars.
The observation was predicted, and is another indication that Voyager will soon reach its historic goal.
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