Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla Gidan Gida A (GP-A) wani gwaji ne na sararin samaniya zuwa ka'idar daidaituwa na ka'idar Einstein na dangi.
Tabbas, mafi rikitarwa na jumla ita ce "Gravity Probe A (GP - A) wani gwaji ne na sararin samaniya don gwada ka'idar dangi gabaɗaya, wanda Smithsonian Astrophysical Observatory da National Aeronautics and Space Administration suka yi. "