Turns out, understang the expansion of the universe is really tough, and the Hubble constant might have been right all along.
Birthed from the minds of astronomers Edwin Hubble and Milton Humason, the Hubble constant has long been our closest attempt at understanding the universe’s rate of expansion. However, recent attempts to measure that expansion rate in other ways have led to some confusing results, with the most common value estimated to be around 70 kilometers per second per megaparsec.
This isn’t really all that surprising of a notion. After all, the universe is a very big place, and we’re constantly finding galaxies that shouldn’t exist based on our current models of the cosmos. As such, it’s no wonder we’ve had so much trouble determining a valid Hubble constant that can be measured across multiple methods, the two main ones being what we call standard candles and standard rulers.
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