William Abbott takes space physicist Louis A. Frank’s small comet theory and runs with it…all the way to Mercury. Though Frank dismissed the possibility that small comets could reach the innermost part of the solar system intact, Abbott cites recent discoveries that suggest there is indeed evidence of water–as well as other cometary ingredients, sodium and potassium–on Mercury. Abbott discusses a surface feature of Mercury known as “the hallows,” which are recent formations. Small comets anyone? For the full background on the subject, check out Frank’s new book,Cosmic Rain: The Controversial Discovery of Small Comets, published by Anomalist Books. (PH)
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