357959_5727-5712

: Use quasars as "backlights" to study the intergalactic gas between us and the source [8]. 3. The Science Behind the String

This specific identifier belongs to a dataset from the , one of the most ambitious and influential surveys in the history of astronomy [2, 5]. 357959_5727-5712

The numbers in the name typically correspond to the specific , MJD (Modified Julian Date) , and Fiber ID used during the SDSS observation [9, 10]: : Use quasars as "backlights" to study the

: Determine how fast the object is moving away from us, which tells us its distance and the age of the universe when that light was emitted [7]. The numbers in the name typically correspond to

The SDSS uses a dedicated 2.5-meter telescope at Apache Point Observatory in New Mexico to map the universe [2, 5]. By cataloging objects like 357959_5727-5712, astronomers can: