Kepler-138 c & d

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A thousand miles of ocean deep

surround those iron cores

Tumultuous waves tossed back and forth,

an ever-present roar

 

Water is weird at depths profound,

the pressure so intense

Water shifts from gas to liquid

to something far more dense

 

Around the dwarf, not one but two

such planets orbit tight

Blue twins like eyes of Earth-like size

peer back into the night

 

Volcanoes erupt and travel up,

the ocean daily boils

Across such seas no ship could sail,

the surface rolls and roils

 

This pair of wombs, with countless moons:

what creatures have you birthed?

We’ll never know unless we hold

a ship in waters berthed