Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Mathilde yakasviba zvikuru, ine albedo yakaenzana neasphalt nyowani, uye inofungidzirwa kuti inogovera chimiro chakafanana neCI1 kana CM2 carbonaceous chondrite meteorite, ine nzvimbo inotongwa nemaminerari e phyllosilicate. Iyo asteroid ine nhamba yemakomba makuru kwazvo, nemakomba ega ega ane mazita eminda yemarasha nemadhamu akapoteredza nyika. Makomba makuru maviri, Ishikari (29.3 km) uye Karoo (33.4 km), akapamhama seavhareji yedenderedzwa renyeredzi. Kurova kunoratidzika kuva kwakaparadzira mavhoriyamu makuru kubva muasteroid, sezvinokarakadzwa namativi emakona amakomba. Hapana misiyano mukupenya kana kuti ruvara yakanga ichioneka mumakomba uye pakanga pasina kuratidzika kwokukamuranisa, naizvozvo mukati measteroid kunofanira kuva kwakafanana zvikuru. Pane zviratidzo zvekufamba kwechinhu chakatarisana nekudzika. Kuwanda kwakaenzana neNEAR Shoemaker, 1,300 kg/m3, kuri pasi pehafu yeiyo yechinyakare carbonaceous chondrite; izvi zvingaratidza kuti asteroid yakanyatsorongeka matombo. Ndizvo zvakaitawo mamwe mapuraneti anonzi C-type akaongororwa neteresikopu dziri pasi pano dzakagadzirirwa masisitimu eoptics anogadziriswa (45 Eugenia, 90 Antiope, 87 Sylvia uye 121 Hermione). Kusvikira ku50% yevhoriyamu yomukati yaMathilde inoumbwa nenzvimbo yakazaruka. Zvisinei, kuvapo kwechikamu chakareba makiromita 20 kungaratidza kuti asteroid yacho ine simba rakati, saka inogona kuva nezvikamu zvakakura zvemukati. Density yomukati yakaderera inotapurira zvisina maturo zvinokonzerwa nekuputika kunopinda nepakati peasteroid, izvo zvinobatsirawo kuchengetedza zvinhu zvepamusoro kusvika pamwero mukuru. Orbit yaMathilde iri eccentric, ichiitakura kuenda kumativi ekunze kwebhandi guru. Kunyange zvakadaro, nharaunda yacho yose iri pakati penzvimbo dzinotenderera nyika dzeMars neJupiter; haipindani nenzvimbo dzinotenderera mapuraneti. Iinewo imwe yenguva dzinotenderera zvishoma pane dzimwe asteroid dzinozivikanwa - asteroid dzakawanda dzine nguva dzinotenderera dziri pakati pe2<unk>24 maawa. Nemhaka yokunonoka kutenderera kwacho, NEAR Shoemaker yakangokwanisa kutora mifananidzo ye60% yepasi peasteroid yacho. Mwero unononoka wokutenderera ungava...  Mubvunzo: Mapuraneti akawanda anotora nguva yakareba sei kuti atendeuke?
2<unk>24 maawa