Physicist Hans Herrmann explains why dunes are such a fascinating and complex system por Marcos Pivetta
Region in the north of Minas Gerais suffers its driest period in over seven centuries por Marcos Pivetta
Evidence of rock art in Paraná por Redação
A world with fewer children por Redação
One in five pregnant women has an STI por Redação
Floating flowers to clean rivers por Redação