For the first time, astronomers have observed a multi-temperature coronal mass ejection from a young Sun-like star. This discovery provides crucial insights into how our own Sun’s violent youth may have shaped early Earth and the conditions for life.
Researchers have documented surprising expansion of a weak spot in Earth’s magnetic field over the South Atlantic region. Satellite data indicates the anomaly has grown by an area equivalent to half the size of continental Europe in just over a decade, presenting new challenges for understanding our planet’s magnetic dynamics.
Earth’s magnetic field is developing a rapidly growing weak spot over the South Atlantic that has scientists concerned, according to new research published in a recent scientific journal. The phenomenon, known as the South Atlantic Anomaly, has expanded significantly over the past eleven years, with satellite data suggesting it has grown by an area equivalent to half the size of continental Europe.
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New satellite measurements show the South Atlantic Anomaly in Earth’s magnetic field has expanded by roughly half the size of continental Europe since 2014. This growing weakness exposes satellites to increased radiation and charging hazards while revealing complex changes in Earth’s core dynamics.
Earth’s magnetic field is developing a concerning weakness that continues to expand across the South Atlantic, according to the latest data from monitoring satellites. Known as the South Atlantic Anomaly (SAA), this vast region where Earth’s protective magnetic shield is significantly weaker has grown substantially since 2014, expanding by approximately half the size of continental Europe while its magnetic intensity continues to diminish. The European Space Agency’s Swarm mission, consisting of three specialized satellites, has provided the most detailed continuous monitoring of this phenomenon, revealing unexpected complexities in how the anomaly is evolving differently across various regions.
