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The source of the wind
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  LASCO - the great comet hunter

blasts from the Sun

 

Every now and then the Sun blasts out HUGE amounts of material from its atmosphere (like a giant belch!). We call these Coronal Mass Ejections (CMEs). A large CME can be made up of almost 10 thousand million tonnes of material and can move at speeds of up to 450 km/s.

 

Imagine you had 10 thousand million tonnes of snow - you could cover the whole of Britain to a depth of 30 cm. Imagine the size of the snowman you could make with that!

   
     
 
 
 
     
 

Windy Space
There is a constant stream of plasma coming from the Sun. We call this the solar wind. CMEs add a lot of material to the solar wind.
Have a look at Jude's section to find more out about the solar wind.

   

 

   
 
 

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