  Recent news reports claim that China is overtaking the United States and all
other countries in scientific productivity and scientific impact. A
straightforward analysis of high-impact papers in astronomy reveals that this
is not true in our field. In fact, the United States continues to host, by a
large margin, the authors that lead high-impact papers. Moreover, this analysis
shows that 90% of all high-impact papers in astronomy are led by authors based
in North America and Europe. That is, only about 10% of countries in the world
host astronomers that publish "astronomy's greatest hits".
