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| The Sculptor Galaxy, NGC253 (Public Domain) |
This is just one tiny blog post. What we thought we knew and didn’t could theoretically fill a galaxy.
Speaking of which, our latest cognitive blooper concerns DLA0817g, “a massive rotating disk” that allegedly “formed just 1.5 billion years after the Big Bang.” But how could it cool down all that quickly? Ah, therein lies the rub.
Turns out that what we thought we knew about galaxies is as reliable as what we think we know about anything. So as not to drown in existential angst, yet another new theory was born.
Astronomers now wonder whether cold matter could be the key. If the core of this embryonic galaxy were frigid, then condensation would be hastened.
Perhaps. But then again, perhaps not.
Copyright May 21, 2020 by Linda Van Slyke All Rights Reserved
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