Mystery at the sun's south pole: Nasa reveals huge 'coronal hole' on the solar surface

There were no fireworks on the sun to welcome in the New Year - and in fact, scientists say the end of the year was relatively quiet on the solar surface.

However, the sun has started 2015 with a mysterious event - a huge hole has appeared.

Known as a coronal hole, the phenomenon occurred near the south pole - and is seen as a dark area covered all of its base in these stunning images .... http://www.dailymail.co.uk