10
Feb
2019

Flatland: New images reveal Ultima Thule’s shape is a “scientific puzzle”

“We had an impression of Ultima Thule based on the limited number of images returned in the days around the flyby, but seeing more data has significantly changed our view,” says Alan Stern, principal investigator on New Horizons. “It would be closer to reality to say Ultima Thule’s shape is flatter, like a pancake. But more importantly, the new images are creating scientific puzzles about how such an object could even be formed. We’ve never seen something like this orbiting the Sun.”

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