MUFON-UFO-Journal-1977-2-February_page_16

MUFON-UFO-Journal-1977-2-February | page 16 | https://thedailydialectics.com/pdfs/space/ufos/mufon/MUFON-UFO-Journal-1977-2-February/MUFON-UFO-Journal-1977-2-February.pdf

ANCIENT ASTRONAUTS ? BY STUART W. GREENWOOD DEPT. OF AEROSPACE ENGINEERING UNIVERSITY OF MARYLAND COLLEGE PARK, MD 20742 Did our planet receive visits from extraterrestrials in prehistoric or early times? There are those who say yes and those who say no. At the time of writing I regard both…