DEATH STAR OCEAN WORLD: Scientists once thought Saturn's smallest moon, whose giant crater indent makes it look like the “Star Wars” Death Star, was just a “frozen block of ice.” But now they believe it may be a “stealth” ocean world.
that stretches a third of the way across its face and has outer walls 3 miles high. NASA has said the indent makes"it look like the Death Star from 'Star Wars.'"
Interior water ocean worlds, otherwise known as IWOWs, are planetary objects that have oceans buried beneath layers of rock and ice. They are also found over a wide range of distances, increasing the number of habitable worlds throughout the galaxy, according to the Southwest Research Institute. , Jupiter's smallest moon,"the most promising place in our solar system to find present-day environments suitable for some form of life beyond Earth.
"Turns out, Mimas' surface was tricking us," Rhoden said,"and our new understanding has greatly expanded the definition of a potentially habitable world in our solar system and beyond. ...if Mimas has an ocean, it represents a new class of small, 'stealth' ocean worlds with surfaces that do not betray the ocean's existence."
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