Lucrarea de doctorat a lui Stephen Hawking, vândută pentru o sumă record la licitaţie
Sonda Parker Solar s-a apropiat, cu succes, de Soare pentru prima dată
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Potrivit autorului raportului, declinul, calificat drept unul notabil, semnalează faptul că în aproape jumătate dintre ţările lumii numărul copiilor născuţi este mai mic decât cel necesar menţinerii populaţiei proprii, scrie Rador.
În 1950, femeile năşteau, în medie la nivel global, mai puţin de cinci copii, însă, în prezent, acest număr s-a înjumătăţit, conform BBC.
ADN-ul celei mai vechi mumii, conservate natural, dezvăluie secretele triburilor din America
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