Scientists Expect More Solar Storms, Northern Lights — VOA Learning English
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Space scientists say unusual lights in the sky, known as the northern lights, are more likely to appear because of intense activity on the sun.
The cause is the 11-year solar cycle. During a period of about 11 years, the sun’s activity changes. The U.S. space agency, NASA, says changes in the sun’s magnetic field cause the activity, which can result in sunspots.
Strong storms on the sun this year have created these “lights” in the sky called auroras. They look like moving waves of color filling the skies similar to what happens as dawn nears. Now, space scientists say these “light shows” are likely to be seen much farther south than usual.
The colors in the sky that people might see may be…
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