Sentences with phrase «auroral activity»
"Auroral activity" refers to the natural phenomenon that occurs in the Earth's atmosphere near the polar regions. It is characterized by colorful lights in the sky called the aurora, also known as the Northern or Southern Lights. This activity is caused by interactions between particles from the Sun and Earth's magnetic field. Full definition
In addition, we'll see auroral activity thanks to coronal holes — openings in the Sun's magnetic field that let its powerful solar wind escape into space.
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In 2015, NASA launched the Magnetospheric Multiscale spacecraft to study the mysterious interactions between Earth and the solar wind when our planet's magnetic field lines occasionally break and reconnect, which also affects auroral activity.
In the colour - coded image, which simultaneously shows dayside and nightside auroral activity, the most intense levels of activity are red, and the lowest levels are blue.
We also analyse other available proxies of solar activity, such as variations of the cosmogenic nuclides 10Beand 14Cas well as auroral activity.
But in a series of Hubble campaigns between 2005 and 2009, Nichols and his colleagues compiled enough images to show that the auroral activity at the planet's poles tends to peak in synchrony with the intensity of the SKR.