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The uncertainty of science: Distance data of more than 1,300 Cepheid variable stars gathered by the Wide-field Infrared Explorer (WISE) space telescope now suggests to astronomers that the disk of the Milky Way galaxy is warped.
Trying to determine the real shape of our galaxy is like standing in a Sydney garden and trying to determine the shape of Australia. But, for the past 50 years there have been indications that the hydrogen clouds in the Milky Way are warped. The new map shows that the warped Milky Way disc also contains young stars. It confirms that the warped spiral pattern is caused by torque from the spinning of the Milky Way’s massive inner disc of stars.
This research is good and helpful in getting us closer to a real picture of our Milky Way galaxy. However, need I say that this result carries with it a great deal of uncertainty? Or should I let my kind readers outline for me the many aspects of this research that leave me with doubts?
I think I want to do the latter. Where do you think the uncertainties are in this research? What assumptions are they making? Where is their data sparse or weak? Feel free to list them in the comments.