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5 December 2013 11:26 am ,
Vol. 342 ,
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
Since arriving on the island of Guam in the 1940s, the brown tree snake ( Boiga irregularis ) has extirpated native...
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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ScienceShot: One Last Crossing Before Interstellar Space?
4 December 2012 5:30 pm
SAN FRANCISCO, CALIFORNIA—The two Voyager spacecraft have been speeding toward the "edge" of the solar system for 35 years, and Voyager 1 is getting close, very close, to leaving the sun's solar wind behind and entering interstellar space. But scientists announced here on Monday at the annual fall meeting of the American Geophysical Union that Voyager 1 has yet another leg of its journey to complete before escaping the solar system. The good news is that the hardy spacecraft has discovered a new region of space that planetary scientists had no idea existed. Out far beyond the orbits of Neptune and Pluto, Voyager 1 in August entered a zone where the charged particles of the solar wind escape outward to interstellar space and at least some of the cosmic rays of interstellar space leak into the bubble of solar wind called the heliosphere that the Voyagers have been traveling through. But Voyager 1 magnetic field measurements show that the spacecraft is still traveling through the magnetic field of the sun and strictly speaking still within the heliosphere. So it could be months or years before Voyager 1 makes its escape.
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