The Comet ISON is with us no more.
The 4.5 billion-year-old comet fell apart Thanksgiving Day as it traveled around the sun.
But, never fear, renowned astrophotographer Adam Block photographed the popular, green comet before its solar close-encounter.
Block works at the UA Science Mount Lemmon Sky Center, where he launched and now manages the center's public observing programs.
He was also recently named the 2013 Deep Space Astronomy Photographer of the Year by Britain's Royal Observatory.