Jupiter ndiyo yekare!
Zvinoitika kuti nyika yekare pane inotenderera zuva ndeyeJupiter. Izvi zvakataurwa nemasayendisiti kubva kuLawrence Livermore National Laboratory uye Institute of Paleontology paYunivhesiti yeMünster. Nokudzidza isotopes ye tungsten uye molybdenum mune iron meteorites, vakagumisa kuti vakabva kumasumbu maviri akaparadzana kubva kune imwe nzvimbo pakati pemamiriyoni uye 3-4 mamiriyoni emakore mushure mekuumbwa kweSolar System.
Tsananguro inonzwisisika yekuparadzaniswa kwemasumbu aya ndiko kuumbwa kweJupiter, iyo yakagadzira gaka muprotoplanetary disk uye yakadzivirira kuchinjana kwenyaya pakati pavo. Nokudaro, musimboti weJupiter wakaumbwa kare zvikuru pane kuparara kwesolar system nebula. Ongororo yakaratidza kuti izvi zvakaitika chete miriyoni makore mushure mekuumbwa kweSystem.
Masayendisiti akawana zvakare kuti anopfuura miriyoni yemakore, musimboti weJupiter wakawana huwandu hwakaenzana neanosvika makumi maviri epasi, uyezve mumakore 3-4 miriyoni anotevera, huremu hwepasi hwakawedzera kusvika makumi mashanu epasi. Dzidziso dzekare pamusoro pehofori dzegasi dzinoti dzinoumba kanokwana kagumi kana makumi maviri pakurema kwePasi uye dzounganidza magasi akaapoteredza. Mhedziso ndeyokuti mapuraneti akadaro anofanira kunge akaumbwa asati anyangarika nebula, iyo yakaguma kuvapo 10-20 mamiriyoni emakore mushure mekuumbwa kweSolar System.
