Forget Iceland's volcano. If you want to see a really big eruption, you need to head to the Sun.
This astonishing image - captured by a new Nasa space telescope - shows a ferocious solar flare looping out the Sun with the power of 100 hydrogen bombs. The ring of fire, heated to tens of millions of degrees, stretches out tens of thousands of miles - and is so big it could contain more than 100 Earths.
It is just one of the spectacular images from a new satellite which it says could give fresh insight into how the Sun works.The pictures were taken by the Solar Dynamics Observatory (SDO), which is the most advanced spacecraft ever designed to study the Sun.
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