Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: PSR B1257+12 yakawanikwa nomudzidzi wezvomuchadenga wokuPoland Aleksander Wolszczan musi wa9 February 1990 achishandisa Arecibo radio telescope. Iyo inonzi millisecond pulsar, rudzi rwenyeredzi ye neutron, ine nguva yokutenderera ye6.22 milliseconds (9,650 rpm), uye yakawanikwa iine zvinopesana munguva yekuputika, izvo zvakatungamirira kuongororo pamusoro pechikonzero chemaputi asina kurongeka. Muna 1992 Wolszczan naDale Frail vakabudisa pepa rakakurumbira pamusoro pokuwanwa kwokupedzisira kwakasimbiswa kwemapuraneti ari kunze kwegadziriro yedu yezuva. Achishandisa nzira dzakanatsiridzwa imwezve nyika yakawanwa ichitenderera pulsar iyi muna 1994.  Mubvunzo: Ndiani akawana PSR B1257+12?
Aleksander Wolszczan