# The Cosmic Background Radiation “Cold Spot” and the Eridanus Supervoid

**URL:** <https://scanalyst.fourmilab.ch/t/the-cosmic-background-radiation-cold-spot-and-the-eridanus-supervoid/787>\
**Category:** Context\
**Tags:** astronomy, cmb-cold-spot, supervoid\
**Created:** [26 January 2022 15:37 UTC](https://scanalyst.fourmilab.ch/t/the-cosmic-background-radiation-cold-spot-and-the-eridanus-supervoid/787 "2022-01-26T15:37:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![johnwalker](https://scanalyst.fourmilab.ch/user_avatar/scanalyst.fourmilab.ch/johnwalker/32/17415_2.png) [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Post date:** [26 January 2022 15:37 UTC](https://scanalyst.fourmilab.ch/t/the-cosmic-background-radiation-cold-spot-and-the-eridanus-supervoid/787/1 "2022-01-26T15:37:47Z")

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[![](https://scanalyst.fourmilab.ch/uploads/default/original/2X/c/c7791aae82ad4c0da9ea754e9f1606257facff32.jpeg "CMB Cold Spot May Be The Largest Void In the Universe - Eridanus Supervoid") ](https://www.youtube.com/watch?v=XX5GR8YsMJo)

Here is the research paper, “The DES view of the Eridanus supervoid and the CMB Cold Spot”. “DES” is the [Dark Energy Survey](https://en.wikipedia.org/wiki/Dark_Energy_Survey), a collaborative astronomical project that uses a variety of observational techniques to map the distribution of mass and dark energy in a large region of the southern sky. The [CMB cold spot](https://en.wikipedia.org/wiki/CMB_cold_spot) is an anomalously cold region in the [cosmic microwave background](https://en.wikipedia.org/wiki/Cosmic_microwave_background) (CMB) radiation in a 5° patch of the southern sky.