NASA'S Fermi Telescope Discovers Giant Structure In Our Galaxy

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Discussion Overview

The discussion centers around the recent discovery of a giant structure in the Milky Way by NASA's Fermi Telescope, exploring potential explanations for its origin and implications for galaxy formation. Participants share links to articles and express their opinions on the nature of these structures, as well as their connections to other astronomical phenomena.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants note that the article offers two possible explanations for the giant structure: an active galactic nucleus or a recent burst of star formation.
  • One participant suggests a potential connection between the newly discovered bubbles and a previous update from NASA, indicating a search for commonalities between the two findings.
  • Another participant raises a question about the future intensity and size of cosmic rays, speculating on their behavior as the solar system moves through different regions of space.
  • A later reply proposes that the bubbles might be remnants of older formation processes, suggesting that galaxies could have formed from disks where such bubbles interacted, which could explain their disk shapes and orientations.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the origins of the giant structure, with no consensus reached on the explanations or implications of the findings.

Contextual Notes

Some discussions involve speculative ideas about the formation of galaxies and the behavior of cosmic rays, which may depend on various assumptions and definitions that are not fully resolved in the conversation.

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The article you cited offers two possible explanations, that the Milky Way recently had an active galactic nucleus or that the Milky Way recently underwent a burst of star formation.
 
http://cmarchesin.blogspot.com/

498884main_DF3_Fermi_bubble_art_labels.jpg


498881main_DF1_Fermi_all-sky_1-10_GeV.jpg
 
In the future, how about the intensity of the ray , increase or decrease?
And the size ll be bigger then now?
Our solar system is in the local-fluff.
When our solar system ll go out there, the ray intensity ll be intense.
 
Bugsy23 said:
Sorry if someone already posted this link but did anyone see this in the news?


http://www.nasa.gov/home/hqnews/2010/nov/HQ_10-295_FERMI.html

What are people's opinions on what this might be?

The main proposed source of the newly discovered bubbles seems to be an explosion from the center of the galaxy.
However, could the bubbles have come before the galaxy?
I remember a Scientific American article years ago (can't locate it) that argued that galaxies were formed from the disks where bubbles touched each other.
It would explain why galaxies are disk shaped and randomly oriented.
Perhaps the newly discovered bubbles are remnants of these older formation bubbles.
 

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