Juno will improve our understanding of the solar system's beginnings by revealing the origin and evolution of Jupiter. Juno will seek to answer: Does Jupiter have a core? However, the Juno mission, which arrived in July 2016, found that Jupiter has a very diffuse core, mixed into the mantle. Instead of being small and compact, Jupiter’s core is “fuzzy” and unexpectedly large, says Ravit Helled, a planetary scientist at the University of Zurich, and a member of the Juno mission. Jupiter probably does not have a solid core. Jupiter is a gas giant and doesn't have a solid surface, but it may have a solid inner core about the size of Earth. Categories Astronomy, Guide to Space Tags core of jupiter, Featured, gas giants, Juno mission, Jupiter, structure of jupiter 7 Replies to “Does Jupiter Have a Solid Core?” Kemp says: By measuring Jupiter’s gravitational and magnetic fields, Juno will be able to determine whether a core exists. Different theories make different predictions about the core, and knowing the size will help determine which theory – if any – is more likely to be correct. It has big storms like the Great Red Spot, which has been going for hundreds of years. Astronomers believed that Jupiter had either a very small and dense core, or perhaps no core at all. Jupiter’s core contains some rock and hydrogen metals. The engine behind Earth’s magnetic field is its rotating, molten core, but the crust and mantle slightly muffles the field, preventing us from taking detailed measurements.
The Juno mission1 has provided an accurate determination of Jupiter’s gravitational field2, which has been used to obtain information about the planet’s composition and internal structure. Juno, NASA’s second New Frontiers mission after New Horizons, was designed to study Jupiter from polar orbit around the gas giant planet. It sounds like a simple question, but it’s not. In addition, the gravity signature of the jets is entangled with the gravity signal of Jupiter’s core. Scientists can not be 100 percent certain if deep within the planet there is a solid core … Juno will improve our understanding of the solar system's beginnings by revealing the origin and evolution of Jupiter. The world of Jupiter is coming into clearer focus for scientists, as new data from NASA’s Juno spacecraft reveals how the planet’s fluids churn and mingle. Juno’s magnetometer will gauge Jupiter’s magnetic field more accurately than it’s ever been possible for any planet – including Earth. The Juno spacecraft has measured Jupiter's low-order, even gravitational moments, J 2 –J 8, to an unprecedented precision, providing important constraints on the density profile and core mass of the planet.Here we report on a selection of interior models based on ab initio computer simulations of hydrogen-helium mixtures.