Abuur nooc ka mid ah weedhan oo aad u adag Daraasadda culeyska A (GP-A) waxay ahayd tijaabo ku saleysan meel bannaan oo ku saleysan mabda 'a u dhigma ee Einstein's theory of relativity.
Dabcan, qaab kale oo adag oo weedha ah waa "Gravity Probe A (GP - A) " oo ah tijaabo ku salaysan bannaanka si loo tijaabiyo aragtida guud ee isbarbardhigga, oo ay si wada jir ah u sameeyeen Smithsonian Astrophysical Observatory iyo Maamulka Duulista Hawada iyo Hawada Qaranka.