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5 December 2013 11:26 am ,
Vol. 342 ,
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...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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ScienceShot: The Source of Saturn's Radio
5 August 2010 12:01 pm
Welcome to KSAT, the radio station broadcasting from the poles of Saturn. For years, scientists have been puzzled by the pulsing intensity of radio emissions from the ringed planet. Puzzling, because the scientists couldn't key the pulses to any known phenomenon. The 11-hour intervals approximated but didn't match Saturn's rotation rate, so the planet's magnetic field couldn't be the source. Nor could scientists find any connection between the radio-signal intensity and variations in the solar wind. Now researchers examining 5 years of images from the Hubble Space Telescope and the Cassini spacecraft, which orbits Saturn and its moons, say they've found a clue. In an upcoming issue of Geophysical Research Letters, a team reports that the variations in radio signal coincide with the intensity of the planet's auroras. That revelation doesn't solve the mystery, however. So scientists have started looking for the cause of the auroral variations. One prime candidate: particle emissions from Saturn's moon Enceladus.
See more ScienceShots.