This is a Solar prominece, a column of gas being lifted by the Sun’s magnetic field into a twisted claw-shape. The picture was taken by a satellite called SOHO.
A Solar prominence. The blue dot in the top right shows the size of the Earth. Credit: ESA and NASA
My name's Olaf Davis, and I'm a PhD student in the Astrophysics group at Oxford. This blog is mainly about astronomy and mainly aimed at the layman (no physics or maths training required!) but I sometimes stray into other areas which interest me, particularly maths and science reporting and communication.