Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: PSR B1257+12 i kitea e te tohunga whetu Polani a Aleksander Wolszczan i te 9 o Hui-tanguru 1990 ma te whakamahi i te pouaka whakaata Arecibo. He pulsar millisecond, he momo whetu neutron, me te huringa huringa o te 6.22 milliseconds (9,650 rpm), ana i kitea he rerekee i te waa pupuhi, i arahi ai ki nga rangahau mo te take o nga pupuhi kore. I te tau 1992 ka whakaputaina e Wolszczan rāua ko Dale Frail tētahi pepa rongonui mō te kitenga tuatahi o ngā aorangi i waho o tō tātou pūnaha rā. Mā te whakamahi i ngā tikanga whakahirahira, kotahi atu aorangi i kitea e karapoti ana i tēnei pūwhero i te tau 1994.  Pātai: Nā wai i kitea te PSR B1257+12?
Ko Aleksander Wolszczan