Chinsinsi cha Trojans ndi Agiriki
Zinsinsi za moyo mwina ndi zazikulu, koma osati chinsinsi chokha cha Dongosolo lathu chomwe asayansi akugwedeza ubongo wawo. Palinso ena, mwachitsanzo, Trojans ndi Agiriki, i.e. magulu awiri a asteroids ozungulira Dzuwa m'njira zofanana kwambiri ndi njira ya Jupiter (4). Amakhazikika mozungulira nsonga zotulutsa (pamwamba pa makona atatu ofanana omwe maziko ake ndi gawo la Sun-Jupiter).
4. Trojans ndi Agiriki ozungulira Jupiter
N’chifukwa chiyani zinthu zimenezi zilipo zambiri ndipo n’chifukwa chiyani zinasanjidwa modabwitsa? Kuonjezera apo, "panjira" ya Jupiter palinso ma asteroids a "msasa wa Agiriki", omwe amadutsa Jupiter mumayendedwe ake ozungulira, akuyendayenda pamtunda wa L4, womwe uli mu kanjira ka 60 ° patsogolo pa dziko lapansi, ndi malo ake. kupita ku "Trojan camp" tsatirani kuseri kwa dziko lapansi, pafupi ndi L5, mumayendedwe a 60 ° kumbuyo kwa Jupiter.
Zoti munene Kuiper lamba (5), amene kugwira ntchito, malinga ndi ziphunzitso zakale, sikophwekanso kutanthauzira. Kuwonjezera pamenepo, zinthu zambiri zimene zili mmenemo zimazungulira mozungulira modabwitsa. Posachedwapa pakhala pali malingaliro omwe akukula kuti zolakwika zomwe zimawonedwa m'derali zimayambitsidwa ndi chinthu chachikulu, chomwe chimatchedwa pulaneti lachisanu ndi chinayi, lomwe, komabe, silinawonedwe mwachindunji. Asayansi akuyesera kuthana ndi zovuta m'njira yawoyawo - akupanga mitundu yatsopano (6).
5 Lamba wa Kuiper Pozungulira Dzuwa
Mwachitsanzo, malinga ndi otchedwa Nicene model, yomwe idawonetsedwa koyamba mu 2005, dzuŵa lathu linali laling'ono kwambiri poyamba, koma zaka mazana angapo miliyoni pambuyo pake. kusamuka kwa dziko ku ma orbits owonjezera. Mtundu wa Nice umapereka yankho lomwe lingakhalepo pakupanga Uranus ndi Neptune, omwe ali otalikirana kwambiri kuti apangike ngakhale m'mawonekedwe oyambirira a dzuwa chifukwa kachulukidwe kazinthu kameneka kanali kochepa kwambiri kumeneko.
Malinga ndi Francesca DeMeo, wasayansi wa ku US Harvard-Smithsonian Center for Astrophysics (CfA), Jupiter anali pafupi ndi Dzuwa m'mbuyomu monga momwe Mars alili pano. Kenako, kusamukira ku kanjira kameneka, Jupiter anawononga pafupifupi lamba wa asteroid - 0,1% yokha ya anthu asteroid adatsala. Kumbali ina, kusamuka kumeneku kunatumizanso zinthu zazing'ono kuchokera ku lamba wa asteroid kupita kunja kwa dongosolo la dzuwa.
6. Mitundu yosiyanasiyana ya mapangidwe a mapulaneti kuchokera ku ma protodisks.
Mwinamwake kusamuka kwa zimphona za gasi m’dongosolo lathu la mapulaneti kunapangitsanso kuti ma asteroids ndi comet agundane ndi Dziko Lapansi, motero kugaŵira pulaneti lathu ndi madzi. Izi zitha kutanthauza kuti mapangidwe a mapulaneti okhala ndi zinthu monga Padziko Lapansi ndizosowa kwambiri, ndipo moyo ukhoza kukhalapo pamiyezi yachisanu kapena maiko akulu am'nyanja. Chitsanzochi chikhoza kufotokoza malo odabwitsa a Trojans ndi Agiriki, komanso kuphulika kwakukulu kwa asteroid komwe dera lathu la cosmic lidakumana nalo zaka 3,9 biliyoni zapitazo ndipo zomwe zimawonekera bwino kwambiri padziko lapansi. Zinachitika pa Dziko Lapansi pamenepo Nthawi ya Hadean (kuchokera ku Hade, kapena Gehena wakale wachi Greek).
