hat
enstriman mizik rover a Yutu a te kòmanse ekzamine lav ki pwobableman koule sou 3 bilyon ane de sa. Ki sa yo te jwenn pa pral kenbe sitwayen òdinè lajè reveye nan mitan lannwit, men li se yon sipriz pou syantis planetè. Geochemists ka rekonstwi istwa yon koule wòch la soti nan melanj la endike nan mineral nan lav la refwadi. Bazalt echantiyon pa kan astronot oswa kolekte pa yon bagay Sovyetik Luna tandans dwe distenge nan de fason: swa segondè nan Titàn, oswa ba.
eng
The Yutu rover’s instruments started examining lava that probably flowed about 3 billion years ago. What they found won’t keep ordinary citizens wide awake at night, but it is a surprise for planetary scientists. Geochemists can reconstruct a rock flow’s history from the telltale mix of minerals in the cooled lava. Basalts sampled by astronaut expeditions or collected by a Soviet Luna probe tended to be distinguished in two ways: either high in titanium, or low.