Astronomy, the Sun is waking
Great expectations for spectacular auroras
On the surface of the Sun have been observed eruptions
When one of these eruptions reach the Earth generates auroras
ROME (03 August) - The sun is waking up on Earth and spectacular auroras are due tomorrow, perhaps the most colorful and vibrant in recent years. After a long sleep it seems that the activity of our star is restarted. On its surface solar flares were observed with plasma (electrically charged particles that is) thrown in interplanetary space. This cloud of particles is making route on Earth and when it arrives, according to experts, between tonight and tomorrow, it could lead to auroras of rare beauty.
To see them, according to experts, there is no need to go to the poles, these extraordinary glow of the sky, their intensity could also be seen from North America and Northern Europe. The solar flares are visible in some images and a video released by NASA, have been taken from the observatory of NASA space solar Solar Dynamics Observatory (SDO).
When one of these eruptions reach the Earth, say the experts, the particles interact with Earth's magnetic field causing geomagnetic storms and spectacular displays of colored lights from red to blue: the auroras, normally observed from the polar regions. The solar activity is cyclical, it lasts about eleven years, the last solar maximum occurred in 2001, the first signs of an eruption, scientists say, that the sun is waking up and going to another solar maximum.
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