Galactic Radiation and Background
... that Galactic Radiation and Background (GRAB) was the first successful U.S. orbital surveillance program , revolutionizing American understanding of Soviet air defense radar capabilities?
... that <b id="mwBlQ"><a href="./Galactic_Radiation_and_Background" id="mwBlU" rel="mw:WikiLink" title="Galactic Radiation and Background">Galactic Radiation and Background</a></b> (GRAB) was the first successful U.S. orbital surveillance program <i id="mwBlY">(satellite pictured)</i>, revolutionizing American understanding of Soviet air defense radar capabilities?