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The Galaxy’s Most Common Planets Have a Strange Childhood
Astronomers have discovered a crucial missing link in understanding how the Galaxy’s most common planets form. By studying four young, extraordinarily puffy planets orbiting a 20 million year old star, researchers have captured a rare snapshot of worlds actively transforming into super Earths and sub Neptunes. This discovery reveals that the universe’s most successful planets start as bloated giants before shrinking dramatically over billions of years, fundamentally changing our understanding of how planetary systems evolve.
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