Voyager 1 (Image Source: NASA)
June 27, 2013: Three new papers published in today's issue of Science suggest that Voyager 1, now more than 18 billion kilometers from the sun, is closer to becoming the first human-made object to reach interstellar space.
"This strange, last region before interstellar space is coming into focus, thanks to Voyager 1, humankind's most distant scout," said Ed Stone, Voyager project scientist at the California Institute of Technology in Pasadena.
Voyager 1 is the near the edge of the heliosphere, a vast bubble made of the sun's own magnetic field. When Voyager punches through the bubble, it will exit the solar system and enter interstellar space--the realm of the stars.
Scientists do not know exactly how far Voyager 1 has to go to reach interstellar space. They estimate it could take several more months, or even years, to get there. The arrival could come at any time, so stay tuned.
More - Link >>> http://science.nasa.gov/science-news/science-at-nasa/2013/27jun_voyager/
Source: NASA Science News.
More on Voyager 1: Link >>> http://en.wikipedia.org/wiki/Voyager_1
Related Blog Posts ---
Has Voyager 1 Left Solar System? (2013 March 21):
NASA Voyager 1 Enters Far Region of Solar System (2012 Dec. 3):
Voyager 1 Really Leaving Solar System? (2012 Sept. 7):
Voyager 1 Reaches Edge of Solar System (2012 Aug. 5):
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