Astronomers discover two new galaxy protoclusters

Using Keck Observatory in Hawaii, astronomers have detected two new protoclusters of galaxies embedded in primordial superclusters. The research paper presenting the discovery and providing basic information about the newfound ...

Two new high-redshift red quasars discovered

Using the Subaru Telescope, astronomers have identified two new dust-reddened (red) quasars at high redshifts. The finding, detailed in a paper published July 16 on the arXiv pre-print server, could improve the understanding ...

Astronomers discover new luminous high-redshift quasar

An international team of astronomers has detected a new luminous quasar at a redshift of 7.02. The newly found quasi-stellar object (QSO), designated DELS J003836.10–152723.6, is the most luminous quasar known at a redshift ...

New extremely X-ray-weak blazar discovered

Astronomers from Italy and Spain have detected a new blazar by analyzing data from two astronomical surveys. The newly found object, designated DESJ014132.4-542749.9, turns out to be an extremely X-ray-weak blazar at high ...

Three high-redshift quasars detected by Chandra

Using NASA's Chandra spacecraft, astronomers have discovered three new ultraviolet-bright radio-quiet quasars at high redshift and measured their basic X-ray properties. The newly found quasi-stellar object turns out to be ...

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