Spektrum (inoffiziell)Jan 20, 2024
Das Universum hat einen kalten Fleck. Beziehungsweise eine Region, die kälter ist, als sie sein sollte. Was da abgeht und was das mit dem Urknall selbst zu tun hat, erfahrt ihr in der neuen Folge der Sternengeschichten. 🎙️#Astronomie #Universum #Sternengeschichten #Astrodicticum #Sterne #kalterFleck #CMBColdSpot #Eridanus #EridanusVoid #Void #Kosmologie #kosmischeHintergrundstrahlung #Inflation #Licht #gravitativeRotverschiebung #Quantenmechanik #Urknall #Sachs-Wolfe-Effekt #integrierterSachs-Wolfe-Effekt #COBE #WMAP #Planck #Kultur
Sternengeschichten : Der kalte Fleck im Universum
Sternengeschichten : Der kalte Fleck im Universum

Kosmische Frostbeule

Show threadJdeBPOct 3, 2023

@fuzzyface

It was the #WMAP.

It looked at the Cosmic Microwave Background and showed that the universe is flat. An important result, because it was thought probable that it was curved, and a flat universe observation eliminates some possible cosmological models that people had.

I didn't immediately think of a flat Earth when looking at the stars in the logo. I thought of a flat universe.

https://map.gsfc.nasa.gov/universe/uni_shape.html

#cosmology #NASA

WMAP- Shape of the Universe

Public access site for The Wilkinson Microwave Anisotropy Probe and associated information about cosmology.

Show threadJdeBPOct 2, 2023

@fuzzyface

There was an interesting #NASA experiment a decade ago where something important was checked by NASA and was found to *be* flat. For a moment, I thought that that was what was being referred to and was confused.

#WMAP #cosmology

Show threadDaniel PomarèdeJun 29, 2023

An intriguing cover for this 2003 issue of Nature, featuring a dodecahedral space topology and this question:

Is this the shape of the Universe?

☑️ The research paper: https://nature.com/articles/nature01944
☑️ A News & Views article: https://nature.com/articles/425566a
☑️ The full issue: https://www.nature.com/nature/volumes/425/issues/6958

#universe #cosmology #topology #curvature #cmb #wmap #bigbang #astronomy #astrophysics #astrodon #nature #cover #covers #naturecovers #space #science #research

Tom ZijlstraJan 12, 2023
Vandaag 10 jaar geleden https://sailing-dulce.nl/home/article-3365 #WMAP #CMB Zaterdag 12-01-2013 Vanmorgen vroeg een SMS-berichtje van mijn dochter Floor: 'Heb je boek uit! Mooi hoor, met veel plezier gelezen. Prachtig einde ook, ontroerend.' Er is geen beter begin van de dag denkbaar! Die dag is trouwens ook mooi. Zonnig en lekker fris. De temperatuur is even boven nul. Het inspireert me tot een lange wandeling over de stadswallen. Op de terugweg drink ik een kop..
<h2>Gorinchem (101)</h2>

Zaterdag 12-01-2013 Vanmorgen vroeg een SMS-berichtje van mijn dochter Floor: 'Heb je boek uit! Mooi hoor, met veel plezier gelezen. Prachtig einde ook, ontroerend.' Er is geen beter begin van de dag...

xameerNov 20, 2020
full #Bayesian analysis of the #WMAP power spectrum demonstrates that the quadrupole prediction of Lambda-CDM #cosmology is consistent with the data at the 10% level and that the observed octupole is not remarkable.
xameerNov 20, 2020
full #Bayesian analysis of the #WMAP power spectrum demonstrates that the quadrupole prediction of Lambda-CDM #cosmology is consistent with the data at the 10% level and that the observed octupole is not remarkable.