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Voyager 1 reaches interstellar space, NASA says

Voyager 1 reaches interstellar space, NASA says

After 36 years of space exploration and months of heated argument among scientists, NASA officials confirmed Thursday that Voyager 1 entered into interstellar space more than a year ago. The final piece of evidence that led scientists to conclude that the spacecraft had crossed the historic threshold arrived in the form of an other-worldly radio transmission recorded on Voyager's vintage 8-track tape recorder this spring. "It's the first spacecraft to reach interstellar space," said Ed Stone, a Voyager project scientist at Caltech and former chief of the Jet Propulsion Laboratory in La Canada Flintridge, where the craft was built. "Think of that. It's really...