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Observing the Redshift Phenomenon of Distant Quasars: Can We Accurately Measure the Trend of the Universe's Expansion Rate Changes?

Not long ago, I was at the observatory in front of a telescope, staring at the spectrum of a quasar on the screen, and the ...
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'This does not look right': Scientists accidentally measure ultrahot ring around black hole using rare 'double zoom' technique

For the first time, astronomers have directly measured a solar-system-size corona around a distant supermassive black hole, ...

Measuring Cosmic Expansion through Quasar Redshift: Interference from Errors, Where Lies the Path to Precision?

In the observatory's observation room, Xiao Li stared at the quasar spectrum on the telescope screen, his brow furrowed. The spectral lines, which should have been neatly arranged, now looked like ...
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Astronomers finally find elusive, dust-shrouded supermassive black holes at ‘Cosmic Dawn’

Using the James Webb Space Telescope and the Subaru Telescope in powerful tandem, scientists have discovered the first ...
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This Mesmerizing Quasar is Brightest Object Yet Discovered - Artist Impression

Distant quasar J043947.08+163415.7 was discovered using gravitational lensing. It is the brightest object yet discovered in ...
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This Early Universe Quasar Artist Impression is Mesmerizing

Distant quasar J043947.08+163415.7 was discovered using gravitational lensing. It is the brightest object yet discovered in ...

Astronomers find elusive supermassive black holes cloaked in dust from Cosmic Dawn

The Subaru Telescope first identified unusually bright galaxies. These galaxies showed high-energy emissions but lacked ...