Article from the website edition.cnn.com.
A colorful, spectacular showing of the aurora borealis greeted Sok, a CNN iReporter, and others at Cadillac Mountain in Acadia National park on Friday.
Greens and whites lit up the night sky, treating viewers to a once-in-a-lifetime showing.
Thanks to a relatively strong solar storm, those living in northern parts of the United States had a chance to take in the vivid colors that normally can only be seen from extremely high latitudes.
Experts say the combined energy from two recent solar events has arrived, prompting the Space Weather Prediction Center to issue a strong geomagnetic storm watch for Saturday.
Click on this link to read more http://edition.cnn.com/2014/09/11/tech/innovation/solar-storm/index.html?hpt=hp_t2.