Ideas worth spreading

Como radiotelescópios nos mostram galáxias invisíveis

1,444,964 views |

Natasha Hurley-Walker |

TEDxPerth

• October 2016

Nosso universo é estranho, maravilhoso e vasto, diz a astrônoma Natasha Hurley-Walker. Uma nave espacial não pode levá-lo em suas profundidades (ainda), mas um radiotelescópio pode. Nesta palestra hipnotizante e cheia de imagens, Hurley-Walker mostra como ela investiga os mistérios do universo usando tecnologia especial que revela espectros de luz que não podemos ver.

Nosso universo é estranho, maravilhoso e vasto, diz a astrônoma Natasha Hurley-Walker. Uma nave espacial não pode levá-lo em suas profundidades (ainda), mas um radiotelescópio pode. Nesta palestra hipnotizante e cheia de imagens, Hurley-Walker mostra como ela investiga os mistérios do universo usando tecnologia especial que revela espectros de luz que não podemos ver.

This talk was presented to a local audience at TEDxPerth, an independent event. TED's editors chose to feature it for you.

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Black holes are found at the center of most, if not all, galaxies. The bigger the galaxy, the bigger the black hole and the more sensational the effect it can have on the host galaxy. These supermassive black holes drag in nearby material, growing to billions of times the mass of our sun and occasionally producing spectacular jets of material traveling nearly as fast as the speed of light. These jets often can't be detected in visible light, but are seen using radio telescopes. Help astronomers find these jets and match them to the galaxy that hosts them.

About the speaker

Natasha Hurley-Walker

Natasha Hurley-Walker

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Natasha Hurley-Walker uses novel radio telescopes to explore the universe at some of the longest wavelengths of light.

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This talk was presented to a local audience at TEDxPerth, an independent event. TED's editors chose to feature it for you.

Read more about TEDx.

Black holes are found at the center of most, if not all, galaxies. The bigger the galaxy, the bigger the black hole and the more sensational the effect it can have on the host galaxy. These supermassive black holes drag in nearby material, growing to billions of times the mass of our sun and occasionally producing spectacular jets of material traveling nearly as fast as the speed of light. These jets often can't be detected in visible light, but are seen using radio telescopes. Help astronomers find these jets and match them to the galaxy that hosts them.