[Article] A clue to the primordial cloud Adjust Share By Frank Sartwell, Ann Ewing, This article is only available as a PDF to subscribers. Download PDF Tags 20th century Astronomy Comets Kohoutek comet Origin Solar system United States More from Frank Sartwell Further sources Comet-watching A clue to the primordial cloud Adjust Share Close < Previous Issue | View All Issues | Next Issue > January 1974 < Previous Issue | View All Issues | Next Issue > Table of Contents Close