Scientists Identify Misunderstanding about Uranus — VOA Learning English
Topics: наука й природа
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In 1781, German-born British astronomer William Herschel made Uranus the first planet discovered with a telescope. But, 243 years later, we still do not know much about this cold planet, the third largest in our solar system. And some of what we thought we knew about it turns out to be untrue.
Much of the knowledge about Uranus was collected when NASA's robotic spacecraft Voyager 2 flew past it in 1986. But scientists have since learned that the craft visited at a time of unusual conditions. An intense solar wind event at the time led to misleading observations about Uranus, and especially its magnetic field.
Observations in a solar wind event
The solar wind is a high-speed flow of charged…
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