Senator's Objections Cast New Uncertainty on Landsat

摘要

Nasa's plan to seek bids this autumn for a land-im-aging satellite to replace a pair of old and ailing Landsat spacecraft is in doubt due to objections raised by one of the U.S. space agency's key Senate supporters. Scientists say this latest twist in the Landsat saga has increased the likelihood of a major break in a data record that today spans some 30 years.