By Jonathan Amos, Science correspondent, BBC News
Telescopes saw the giant ball of ice and dust disappear behind the star, but only a dull streamer emerge. Astronomers continued to search for the object, but it eventually became clear that the much vaunted "Comet of the Century" had gone out with a whimper.
Despite its great size, Ison was probably torn apart in the immense heat and tidal forces so close to the Sun.
The European Space Agency's experts on the Soho Sun-watching satellite called the death of the comet at about 21:30 GMT. "Our Soho scientists have confirmed, Comet Ison is gone," Esa's twitter feed announced.
Full report at : http://www.bbc.co.uk/news/science-environment-25143861