对1995年至2001年《Nature》和《Science》上发表的天文学论文的统计表明,行星天文学领域的论文数量明显超过天文学的其它分支学科,占天文学总论文数的1/3左右。
By analyzing the number of the papers on astronomy published in Nature and Science from Jan. 1995 till Dec. 2001 , it is concluded that planetary astronomy is one of the most active fields .