Send a comment on this item to LII: Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours. The International Geophysical Year Essay and photo galleries related to the International Geophysical Year (IGY), "a comprehensive series of global geophysical activities to span the period July 1957-December 1958." Gallery topics include Antarctica, cosmic rays, glaciology, Earth satellites, rocketry, and more. Includes images and information about the IGY postage stamp issued by the U.S. From the National Academy of Sciences. http://www7.nationalacademies.org/archives/igyhistory.html Asterisk * indicates required field. Your Name Your Email Address * We will not sell or provide your email address to anyone else. Comment * Enter the verification code as it is shown in the box below. This helps prevent automated submissions. *