Wednesday, September 5, 2012

NASA's traveler 'dancing on edge' of outer space

In a lecture marking the approaching 35th centenary of the Voyager project, Ed Stone said it could be "days, months or years" before it lastly breaks into interstellar space.Earlier this year a surge in a key pointer fueled hopes that the craft was nearing the so-called heliopause, which inscription the limit between our solar system and external space.

Scientists were intrigued in May by an enlarge in cosmic waves hitting the spacecraft, which for decades has snapped images of the Earth and other planets in the solar system as it has made its long trip into external space.But measurements since then have fluctuated up and down, signifying that, while the ability is near to the edge, it may tranquil not get there for some time.

"Crossing into interstellar space -- that will be a significant instant when the first object launched from Earth finally leaves the fizz," he said. Before May's rush in space rays researchers had said they projected Voyager 1 would leave the solar system and enter interstellar space -- between the end of the Sun's pressure and the next star system -- within two years.

NASA has described Voyager 1 -- today 11 billion miles (18 billion kilometers) away from the Sun -- and its cohort Voyager 2 as "the two most far-away active representatives of civilization and its wish to discover."

The scientists scheming Voyager 1 -- whose 1970s technology means it has only a 100,000th of the computer recollection of an 8 gigabyte iPod Nano -- determined to turn off its cameras after it approved Neptune in 1989, to protect control.


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