Scientists have discovered a wavepattern, or oscillation, in Saturn's atmosphere only visible from Earth every 15 years, according to two studies published Thursday in journal Nature.
The discovery is the result of a 22-year campaign observing Saturn from Earth, and the Cassini spacecraft's observations of temperature changes in the giant planet's atmosphere over time. The Cassini infrared results indicate that Saturn's wave pattern is similar to a pattern found in Earth's upper atmosphere. (source: english.people.com.cn)
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