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Uncover the science behind the Doppler Effect, where the frequency of sound or light changes based on the movement of the source and observer. Learn how this phenomenon explains the changing pitch of a passing siren and the redshift of distant stars in the universe.
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Quasares: são os objetos mais luminosos do Universo. Têm aparência estelar, emissão forte em rádio e espectro com grandes redshifts, indicando que são muito distantes. Fonte de energia: Acredita-se que seja gás sendo acelerado por um buraco negro supermassivo central. #Astronomia #nasa #desafio #SpaceX #spacetoday
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Redshift é uma ferramenta fundamental para medir o universo. Como os astronomos geralmente conseguem determinar qual comprimento de onda veriam de perto, eles podem dizer a que distância uma galáxia está pela quantidade de variação da luz. Galáxias distantes têm toda a sua luz visível deslocada para infravermelho. #astronomy
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