#extragalactic background light

[astroblogs]

Alle sterren in het heelal bij elkaar hebben tot nu toe 4 x 10^84 fotonen geproduceerd  

Alle 739 blazars door Fermi onderzocht. De horizontale roodoranje band is De Melkweg. Credit: NASA/DOE/Fermi LAT Collaboration.

Sterrenkundigen zijn erin geslaagd om te bepalen hoeveel licht alle sterren in het heelal in de afgelopen 13,8 miljard jaar, da’s de leeftijd van het heelal, hebben geproduceerd. Het blijkt dat tot nu toe maar liefst 4 x 10^84 fotonen (lichtdeeltjes) zijn geproduceerd.…

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[adrianusv61]

Alle sterren in het heelal bij elkaar hebben tot nu toe 4 x 10^84 fotonen geproduceerd  

Alle 739 blazars door Fermi onderzocht. De horizontale roodoranje band is De Melkweg. Credit: NASA/DOE/Fermi LAT Collaboration.

Sterrenkundigen zijn erin geslaagd om te bepalen hoeveel licht alle sterren in het heelal in de afgelopen 13,8 miljard jaar, da’s de leeftijd van het heelal, hebben geproduceerd. Het blijkt dat tot nu toe maar liefst 4 x 10^84 fotonen (lichtdeeltjes) zijn geproduceerd.…

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[explorationimages]

CIBER: "NASA Rocket Experiment Finds Flood of Cosmic Light"

A NASA sounding rocket experiment has detected a surprising surplus of infrared light in the dark space between galaxies, a diffuse cosmic glow as bright as all known galaxies combined. The glow is thought to be from orphaned stars flung out of galaxies. The findings redefine what scientists think of as galaxies. Galaxies may not have a set boundary of stars, but instead stretch out to great distances, forming a vast, interconnected sea of stars. Read more: http://www.jpl.nasa.gov/news/news.php?feature=4363

Background info on CIBER available at the Caltech project page.

[mitchbattros]

Detection of the Cosmic Gamma Ray Horizon: Measures All the Light in the Universe Since the Big Bang

Detection of the Cosmic Gamma Ray Horizon: Measures All the Light in the Universe Since the Big Bang

http://earthchangesmedia.com/detection-of-the-cosmic-gamma-ray-horizon-measures-all-the-light-in-the-universe-since-the-big-bang

How much light has been emitted by all galaxies since the cosmos began? After all, almost every photon (particle of light) from ultraviolet to far infrared wavelengths ever radiated by all galaxies that ever existed throughout cosmic history is still speeding through…

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[cyruspavel]

e.b.l.

Nothing ever goes away.  When we die our energy and matter transform.  Not even the stars go away, us, and them all become part of the Extragalactic Background Light that exists out there. 

CP'12

[gearsoft-blog]

NASA'S Fermi Measures Cosmic 'Fog' Produced By Ancient Starlight

published on Gearsoftimes

from NASA Breaking News   Astronomers using data from NASA’s Fermi Gamma-ray Space Telescope have made the most accurate measurement of starlight in the universe and used it to establish the total amount of light from all the stars that have ever shone, accomplishing a primary...

http://gd.is/xnE758