After 20 years of mapping the night sky, one project has filled in an 11 billion year gap in our knowledge of the universe’s history.
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Since 2000, the Sloan Digital Sky Survey, or SDSS, has been regularly studying the sky via its relatively small two-and-a-half meter telescope in New Mexico with the goal of creating the most detailed map of the observable universe ever.

The data produced by the SDSS has made it one of the most influential tools in cosmology. Over the years the project introduced new instruments like the Baryon Oscillation Spectroscopic Survey, or BOSS, which mapped the distribution of luminous red galaxies and quasars to establish a scale created by ripples in the very early universe.

SDSS is on its fifth study and if it is anything like the others it will reveal parts of the cosmos we've never seen before.

Find out more about the lasting legacy on scientific study the SDSS project has had and will have for years to come in this Elements.

#universe #telescope #cosmos #space #science #seeker #elements

Scientists May Be One Step Closer to Figuring Out How Fast the Universe is Expanding
   • Scientists May Be One Step Closer to ...  

Read More:
No need to Mind the Gap: Astrophysicists fill in 11 billion years of our universe’s expansion history
https://www.sdss.org/press-releases/n...
"The Sloan Digital Sky Survey (SDSS) released today a comprehensive analysis of the largest three-dimensional map of the Universe ever created, filling in the most significant gaps in our possible exploration of its history."

SDSS-IV: Current Surveys (2014-2020)
https://www.sdss.org/surveys/
"After nearly a decade of design and construction, the Sloan Digital Sky Survey saw first light on its giant mosaic camera in 1998 and entered routine operations in 2000."

What Is The Hubble Constant?
https://www.space.com/25179-hubble-co...
"The Hubble Constant is the unit of measurement used to describe the expansion of the universe."
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