June 11, 2012
By Marcia S. Smith, editor, SpacePolicyOnline.com. The Landsat land remote sensing satellite program is about to celebrate its 40th anniversary onJuly 23, 2012. While users remain enthusiastic about current Landsat data and the long-term data set enabled by continuous operation of similar instruments over four decades, the program's future is cloudy. Marcia McNutt, director