|Friday, April 19, 2013||15A||It reflects radio waves||Ned White|
|Monday, August 1, 2011||10D||Where the Northern Lights occur||Joel Fagliano|
|Friday, January 3, 2003||28D||Radio wave reflector||Jim Page|
1 result for IONOSPHERE from Variety puzzles.
|December 17, 2000||acrostic||D||Region where radio waves are reflected||Emily Cox and Henry Rathvon|
1 result for IONOSPHERE from older pre-Shortz puzzles.
|Tuesday, November 24, 1992||21A||Environmentalist's concern||Ruth Minary||Maleska|