A Comet that was recently spotted may - over the next 12 months - get quite close to the Sun.
There are many 'sungrazing Comets' - and some of them end up as a fireball which is swallowed up by the Sun - never to be seen again.
A new member of this class has been spotted and, if its orbit goes as it is predicted then this Comet, Comet C/2012 S1 ISON, will make a close pass of the Sun in late Summer 2013 and will, hopefully then, be visible in the skies in Autumn 2013.
It could be as bright as Comet McNaught of 2007 - but Comets are fickle objects and can sometimes disappoint.
So, look at this article for more details and a star-chart