Is Jupiter on a diet? New measurements say it's smaller than we thought

An illustration of a spacecraft with three opposing solar panels floats in front of the planet Jupiter, its blue and brown clouds swirling on its surface.

Jupiter has had its length and breadth measured again, and it turns out the giant planet is skinnier and shorter than scientists had thought.

"Textbooks will need to be updated," said Yohai Kaspi of the Weizmann Institute in Israel in a statement. "The size of Jupiter hasn't changed, of course, but the way we measure it has."