article_snippet: This explains why there are no planets between Mercury and the sun.
article_snippet: Now we can look at we in the context of all these other planetary systems, one of the most interesting features is the absence of planets inside the orbit of Mercury,’ said Professor Gregory Laughlin, of California University in Santa Cruz, who co-authored the study.
article_snippet: ‘gaping hole’ in our inner solar system between Mercury and the sun.
highlights_snippet: This explains why there are no planets between Mercury and the sun .
  