http://www.bbc.co.uk/news/science-environment-22728476
May 31, 2013 - BBC News
Comet ISON continues to foreshadow its close pass of the Sun later in
the year - Hawaii's Gemini Observatory snapped these images of ISON
crossing the sky in early February, March, April and May. It will pass
within 1.2m km of the Sun in November, and could be the "comet of the
century" if it does not burn up entirely on the way.