University of Liège scientists reveals similarities between auroras on Ganymede and Earth
Peer-Reviewed Publication
Updates every hour. Last Updated: 19-Apr-2026 05:15 ET (19-Apr-2026 09:15 GMT/UTC)
New observations of Ganymede reveal a striking similarity between the auroras on the largest moon in the solar system and those on Earth. The international team of astrophysicists, led by researchers from the University of Liège, has produced new results indicating that, despite different conditions, the fundamental physical processes that generate auroras are common to different celestial bodies, and not just planets.
Chinese researchers have developed China's first compact high-temperature superconducting magnetoplasmadynamic thruster, achieving a revolutionary reduction in power consumption from 285 kW to under 1 kW and weight from 220 kg to 60 kg. Published in National Science Review, the breakthrough utilizes YBCO superconducting material operating at liquid nitrogen temperatures (-196°C) to replace traditional copper coils. The thruster demonstrates an exceptional specific impulse of 3,265 seconds at 12 kW input power—more than ten times higher than conventional chemical propulsion. The team also established a comprehensive analytical magnetohydrodynamic model that accurately predicts performance parameters. This advancement solves the critical propulsion bottleneck for small satellites, enabling lightweight, cost-effective spacecraft with dramatically reduced fuel requirements for deep space missions.
BETHESDA, MD – As space agencies prepare for human missions to the Moon and Mars, scientists need to understand how the absence of gravity affects living cells. Now, a team of researchers has built a rugged, affordable microscope that can image cells in real time during the chaotic conditions of zero-gravity flight—and they’re making the design available to the broader scientific community.
Antarctica plays a crucial role in the Earth’s climate system by reflecting solar radiation back into space. The large white ice surfaces and clouds play a decisive role in this process. However, how clouds actually form in Antarctica, how they interact with the atmosphere and what role aerosols play in this process has not been sufficiently researched to date. Engaging in the SANAT flight campaign, the Alfred Wegener Institute, the Leibniz Institute for Tropospheric Research and the Max Planck Institute for Chemistry aim to help close this knowledge gap. The flight-based aerosol measurements conducted in Antarctica are the first of their kind in 20 years and also the first to extend deep into the interior.
Digital games are often considered to be isolating; however, recent research shows that these games can also foster strong social bonds among players. A study conducted at Doshisha University analyzed a Japanese Discord community built for the competitive game Splatoon 3. The findings revealed that the gaming community also served as a space for social connection, emotional support, and belonging—highlighting the growing social role of online communities in everyday life.
A Northumbria University PhD student has led an international team of astronomers in creating the first-ever three-dimensional map of Uranus's upper atmosphere, revealing how the ice giant's unusual magnetic field shapes spectacular auroras high above the planet's clouds.
Astronomers have long debated why so many icy objects in the outer solar system look like snowmen. Michigan State University researchers now have evidence of the surprisingly simple process that could be responsible for their creation. Jackson Barnes, an MSU graduate student, has created the first simulation that reproduces the two-lobed shape naturally with gravitational collapse. His work is published in the Monthly Notices of the Royal Astronomical Society.