Future space missions will further our knowledge of tidal heating and orbital resonances, processes thought to create spectacular volcanism and oceans of magma or water on other worlds.
Space & Planets
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What Inflates the Solar Bubble? Voyagers Count What’s Missing
The first in situ measurement of the pressure at the edge of the solar system reveals that there’s still a lot we don’t know about what sets the size of the heliosphere.
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Set to Music, Exoplanets Reveal Insights on Their Formation
Sonification hints at how some Kepler planets may have been configured in the late stages of their development.
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Million-Degree Experiment Complicates Solar Science
Experiments at Sun-like temperatures show that certain elements absorb more light than solar models predict, creating uncertainties for stellar science.
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Interstellar Interloper Borisov Looks Like a Regular Comet, for Now
A first look at the chemical composition of the interstellar comet Borisov reveals ingredients that look a lot like those found in solar system comets. That’s not likely to last very long.
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Jupiter’s Galilean Moons May Have Formed Slowly
A new model is the first to simultaneously explain many of the moons’ characteristics, including their mass, orbits, and icy composition
Posted inEditors' Highlights
First Inside Look at Hot and Cold Ions in Jupiter’s Ionosphere
The first in-situ ion observations from NASA’s Juno spacecraft reveal the surprising, simultaneous presence of cold protons and hot oxygen and sulfur ions in the high-latitude ionosphere of Jupiter.
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Looking Away from the Sun: Improved Tracking of Solar Storms
A new tool for tracking coronal mass ejections away from the Sun opens a path toward more accurate warnings for operators who have to cope with adverse space weather.
Posted inEditors' Vox
Ceres: Evolution of the Asteroid Belt’s Icy Giant
A new special collection in JGR: Planets explores how ice has played a key role in the development of the landscape on the surface of Ceres.
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Massive Collision Cracked Young Jupiter’s Core
The gas giant’s interior reveals evidence of an ancient impact.