Astronomers create the largest map of the universe

Quasars are extremely bright, extremely distant objects. They are the disks of material around supermassive black holes, which heat up and glow as material streams inward toward the event horizon. And now, the Sloan Digital Sky Survey (SDSS) has identified more than 147,000 of these objects in the distant universe to create a first-of-its-kind 3-dimensional map of the early universe that is also the largest such map available to date.

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>the largest such map available to date

what am I to do if it’s too large to hang on my wall

Tau.Neutrino said:

Astronomers create the largest map of the universe

Quasars are extremely bright, extremely distant objects. They are the disks of material around supermassive black holes, which heat up and glow as material streams inward toward the event horizon. And now, the Sloan Digital Sky Survey (SDSS) has identified more than 147,000 of these objects in the distant universe to create a first-of-its-kind 3-dimensional map of the early universe that is also the largest such map available to date.

more…

Calculated distances to quasars are notoriously unreliable.

> the Sloan Digital Sky Survey (SDSS) has identified more than 147,000

In 1998, there were only 12,000 known quasars.

“More than 200,000 quasars are known, most from the Sloan Digital Sky Survey” from Wikipedia.

transition said:

>the largest such map available to date

what am I to do if it’s too large to hang on my wall