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Hubble Quasars - NASA Science
2024年10月9日 · Among its quasar observations, in 2019 Hubble found the brightest quasar known in the early universe by using a combination of its sharp vision and a natural gravitational lens in space to see the distant object. Gravitational lenses occur when the gravity of a massive object ― in this case another galaxy ― warps and […]
Quasar | Discovery, Structure & Evolution | Britannica
2024年12月12日 · The term quasar derives from how these objects were originally discovered in the earliest radio surveys of the sky in the 1950s. Away from the plane of the Milky Way Galaxy, most radio sources were identified with otherwise normal-looking galaxies.Some radio sources, however, coincided with objects that appeared to be unusually blue stars, although photographs of some of these objects showed ...
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