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The extraordinary Voyager 1 spacecraft is demonstrating its nimbleness more than 30 years after leaving Earth. At the astonishing distance of 17.4 billion km, the Nasa probe is the most far-flung object made by humans.

2011-03-09

 Voyager distance spacecraft space travel NASA probe interstellar travel galaxy Milky Way solar wind heliopause Voyager 1
Humankind's most distant emissaries are flying through a turbulent sea of magnetism as they seek to break free of our Solar System. Nasa's Voyager probes, which were launched in 1977, are now approaching the very edge of our Sun's influence, more than 14 billion km from Earth; and they are still returning data. That information has allowed scientists to build a better picture of what conditions are like in the zone where...

2011-06-09

 Voyager probe interstellar travel heliopause magnet cosmic ray