The New Ground-Based GPS Locata Network May Have a Bright Future to Eliminate Terrestrial Blind Spots and Advance Indoor Mapping

At Scientific American in the article NASA and the U.S. Air Force Test a New Ground-Based GPS, Corinne Iozzio reports on the Australian Locata terrestrial i.e. ground-based network, "that could eliminate the GPS’s blind spots and advance indoor mapping". Read more here.