Using x-rays as a new diagnostic tool for monitoring space weather
Peer-Reviewed Publication
Updates every hour. Last Updated: 11-Sep-2025 07:11 ET (11-Sep-2025 11:11 GMT/UTC)
Earth’s magnetosphere protects us from charged particles constantly emitted by the Sun, but intense conditions can breach it through a process called magnetic reconnection. Now, researchers from Japan propose a novel method using soft X-ray imaging to remotely measure the reconnection rate, a key parameter in magnetic reconnection. This study showcases a powerful tool for forecasting hazardous space weather events, paving the way to safer near-Earth space applications and exploration.
Fast X-ray transients (FXTs) are blasts of X-rays from distant galaxies. Astronomers have detected FXTs since the 1970s, but their origins have remained unknown. By studying the closest FXT associated with a supernova ever detected, scientists found it was produced by a geyser of high-energy particles trapped inside the outer layer of a massive star.
Scientists tackle one of the most challenging problems in physics--the interplay between quantum theory and gravity—from a different angle.
Simple laboratory model for cosmic flows developed: A water tornado enables a realistic simulation of the dynamics of gas and dust in planet-forming discs.
Kepler’s laws confirmed in a water tank: The orbits of floating particles follow the same physical rules as celestial bodies in a gravitational field.
Potential for experiments on planet formation: The cost-effective and versatile setup opens up new ways to study interactions between dust and gas under laboratory conditions.