Occasionally, I play around with understanding the citation habits of astronomers. ... This work was inspired by a paper by Jay Frogel titled Astronomy's Greatest Hits: The 100 Most Cited Papers in Each Year of the First Decade of the 21st Century (2000-2009) . ... The results are quite interesting as there is a clear break for the highly cited papers slowly trending from 1 to 2 authors over almost 100 years to shooting up to having close to 100 authors in just 20 years. ...