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La roccia più antica che si possa tenere in mano è stata trovata in Australia da un team di ricercatori della Curtin University di Perth, in Australia. Si tratta di un meteorite formatosi durante la “nascita” del Sistema solare, più di 4,5 miliardi di anni fa.
"È più vecchia dello stesso pianeta Terra", ha spiegato il geologo planetario Phil Bland, che l’ultimo giorno del 2015 ha estratto il prezioso sasso del peso di 1,7 chilogrammi scavando con le proprie mani nel fango del letto del lago Eyre, poco prima che le piogge lo riempissero, cosa che avrebbe reso praticamente impossibile individuare il meteorite.
La sua caduta era stata osservata da delle telecamere mentre entrava nell’atmosfera e gli scienziati, oltre al luogo approssimativo dell’impatto (poi individuato grazie a un drone), hanno potuto capire che proviene da oltre l’orbita di Marte.
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