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Jupiter size refined by new radio mapping
Paris, France (SPX) Feb 05, 2026 For more than half a century, planetary scientists relied on a handful of spacecraft flybys to pin down Jupiter's size and shape. Now, an international team led by the Weizmann Institute of Science has used a trove of new radio data from NASA's Juno mission to redraw the gas giant with unprecedented precision. The study, published in Nature Astronomy, replaces six measurements from NASA's Voyager and Pioneer missions with 26 carefully analyzed passes by Juno. Those earlier flybys sent radio beams ... read more |
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Europa ice delamination may deliver nutrients to hidden oceanLos Angeles CA (SPX) Jan 21, 2026 A new geophysics study proposes a mechanism that could move life-sustaining nutrients from the battered surface of Europa down into its buried global ocean, improving the odds that the Jovian moon c ... more 
Birth conditions fixed water contrast on Jupiters moonsLos Angeles CA (SPX) Jan 21, 2026 While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor Europa is thought to harbor a vast global ocean of liquid water beneath ... more 
Polar weather on Jupiter and Saturn hints at the planets' interior detailsBoston MA (SPX) Jan 21, 2026 Over the years, passing spacecraft have observed mystifying weather patterns at the poles of Jupiter and Saturn. The two planets host very different types of polar vortices, which are huge atmospher ... more 
Study links Europa's quiet seafloor to hidden potential for lifeLos Angeles CA (SPX) Jan 21, 2026 The giant planet Jupiter has nearly 100 known moons, but none has captured scientific attention quite like Europa, which likely hides a global salty ocean beneath an icy crust that may contain twice ... more |
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Saturn moon mission planning shifts to flower constellation theoryTokyo, Japan (SPX) Nov 12, 2025 Researchers have developed a satellite constellation approach designed for exploration around Titan, Saturn's largest moon. The framework, known as the 2D Necklace Flower Constellation, prioritizes ... more 
Could these wacky warm Jupiters help astronomers solve the planet formation puzzle?Los Angeles CA (SPX) Oct 15, 2025 What do you do when you have an unanticipated astronomical phenomenon, a dataset made of planets thousands of light-years away and theoretical models that fail to explain what exactly you're looking ... more 
Out-of-this-world ice geysers on Saturn's EnceladusAustin TX (SPX) Oct 01, 2025 In the 17th century, astronomers Christiaan Huygens and Giovanni Cassini trained their telescopes on Saturn and uncovered a startling truth: the planet's luminous bands were not solid appendages, bu ... more 
3 Questions: How a new mission to Uranus could be just around the cornerBoston MA (SPX) Oct 01, 2025 The successful test of SpaceX's Starship launch vehicle, following a series of engineering challenges and failed launches, has reignited excitement over the possibilities this massive rocket may unl ... more 
A New Model of Water in Jupiter's AtmospherePasadena CA (SPX) Oct 01, 2025 Caltech researchers have developed a new simulation of the hydrological cycle on Jupiter, modeling how water vapor condenses into clouds and falls as rain throughout the giant planet's swirled, turb ... more |
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Evidence of a past, deep ocean on Uranian moon, Ariel
Tucson AZ (SPX) Sep 30, 2025 Growing evidence suggests that a subsurface ocean lurks beneath the icy surface of Uranus' moon Ariel, but new research, published in Icarus, characterizes the possible evolution of this ocean, and found that it may have once been over 100 miles (170 kilometers) deep. For perspective, the Pacific Ocean averages 2.5 miles (4 kilometers) deep. "Ariel is pretty unique in terms of icy moons," said paper co-author Alex Patthoff, a Planetary Science Institute senior scientist. Ariel is Uranus' bri ... read more 
NASA Study: Celestial 'Accident' Sheds Light on Jupiter, Saturn RiddlePasadena CA (JPL) Sep 17, 2025 An unusual cosmic object is helping scientists better understand the chemistry hidden deep in Jupiter and Saturn's atmospheres - and potentially those of exoplanets. Why has silicon, one of the most ... more |
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Methane gas revealed on dwarf planet Makemake by JWST observationsLos Angeles CA (SPX) Sep 11, 2025 A Southwest Research Institute-led research team has made the first detection of gas on Makemake, a distant dwarf planet in the outer Solar System, using NASA's James Webb Space Telescope (JWST). Th ... more 
Fresh twist to mystery of Jupiter's coreLondon, UK (SPX) Aug 22, 2025 The mystery at Jupiter's heart has taken a fresh twist - as new research suggests a giant impact may not have been responsible for the formation of its core. ... more 
Jupiter birth dated through ancient molten rock droplets in meteoritesNagoya, Japan (SPX) Aug 25, 2025 Researchers from Nagoya University and the Italian National Institute for Astrophysics (INAF) have determined the timing of Jupiter's formation by studying tiny molten rock spheres known as chondrul ... more 
Jupiter core mystery not explained by giant planetary impactLondon, UK (SPX) Aug 22, 2025 A new Durham University study challenges the idea that Jupiter's unusual dilute core was formed by a giant collision, overturning a leading explanation of the planet's interior structure. Jupi ... more 
New Horizons begins record hibernation in Kuiper BeltLos Angeles CA (SPX) Aug 22, 2025 At 4:12 a.m. EDT on Aug. 7, mission controllers at Johns Hopkins Applied Physics Laboratory confirmed that New Horizons had safely entered hibernation mode. The spacecraft, operating more than 5.7 b ... more |
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