Shrinking planets could explain mystery of universe’s missing worlds – Phys.Org

There’s been a breakthrough in the case of the missing planets.
While planet-hunting missions have discovered thousands of worlds orbiting distant stars, there’s a severe scarcity of exoplanets that measure between 1.5 and two times Earth’s radius. That’s the middle ground between rocky super-Earths and larger, gas-shrouded planets called mini-Neptunes. Since discovering this ‘radius gap’ in 2017, scientists have been sleuthing out why there are so few midsize heavenly bodies.
The new clue arose…

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