Space Snowballs

NPR's Richard Harris reports on the vindication of University of Iowa scientist Louis Frank, who created a sensation 11 years ago, by proposing that the earth's atmosphere was being bombarded by giant snowballs. Yesterday, Frank showed a meeting of the American Geophysical Union new evidence to support his theory: satellite photos depicting large, dark holes in the atmosphere and bright streaks of oxygen and and hydrogen released when water molecules break apart.

Comments

 

Please keep your community civil. All comments must follow the NPR.org Community rules and terms of use, and will be moderated prior to posting. NPR reserves the right to use the comments we receive, in whole or in part, and to use the commenter's name and location, in any medium. See also the Terms of Use, Privacy Policy and Community FAQ.