Association Affairs Space Astronomy By Michael D. Papagiannis See allHide authors and affiliations Science 07 Nov 1969:Vol. 166, Issue 3906, pp. 775-776DOI: 10.1126/science.166.3906.775 Michael D. Papagiannis Find this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.
Science Vol 166, Issue 390607 November 1969 Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)