In the universe things tend to cluster. This means there’s a coherent structure to the universe and learning about clusters of stars – galaxies - helps us figure out what that structure is. Join Chuck and Josh on an amazing space voyage!
# Stuff You Should Know - Galaxies Episode Summary
Josh, Chuck, and Jerry take listeners on a mind-bending cosmic journey exploring everything from our place in the Milky Way to the vast universe beyond, packed with hilarious tangents and mind-expanding comparisons that make the incomprehensibly huge actually feel relatable. The episode dives into galaxy types—from spirals like our own to elliptical and irregular galaxies—and reveals how astronomers discovered that galaxies aren't lonely islands in space but rather collide and merge over billions of years, with Andromeda set to crash into us in about five billion years. Along the way, the hosts tackle cosmic concepts like red shift, galaxy clusters, the mysterious intergalactic medium, and the sobering reality that the expanding universe means most of it will eventually become completely undetectable to us.
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