Vega é a quinta estrela mais brilhante, excluindo o sol, que pode ser vista da Terra. (Crédito da imagem: NASA / JPL-Caltech) Um possível planeta escaldante foi localizado por astrônomos, orbitando Vega, uma das estrelas mais brilhantes e conhecidas do céu.Aproximadamente do tamanho de Netuno, o candidato a planeta alienígena fica muito perto de Vega,...
A química é o estudo das reações em cadeia que ocorrem entre os vários elementos e também substâncias. Este é um dos ramos importantes da corrente de pesquisa científica depois da Física e também da Biologia. O que quer que esteja ao nosso redor consome espaço, e a massa é chamada de 'matéria', que...
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