Tag: magnetosphere
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Next stop, not Mars: Why NASA’s twin ESCAPADE probes are taking the long way to the Red Planet after Blue Origin launch
Introduction: Mars mission with a twist In a historic-but-unconventional move, NASA is sending twin ESCAPADE probes toward Mars, not via the fastest direct route, but by a longer, more strategic journey. The mission marks a rare return of a dedicated Mars expedition in recent years, yet the path ahead is deliberately circuitous. The launch, carried…
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Earth’s Magnetic Heartbeat Reverses: Scientists Uncover a Surprising Twist
New Findings Shake Long-Standing Beliefs About Earth’s Magnetic Field Scientists studying Earth’s magnetic field have reported a surprising twist: the electric heartbeat that powers our planet’s magnetosphere appears to flow in the opposite direction from what long-standing models predicted. This discovery challenges traditional ideas about how the geodynamo—the natural convection currents in the molten iron…
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Electric Heartbeat Reverses Course: A Surprising Twist in Earth’s Magnetic Field
New Findings Upend Long-Standing Assumptions For decades, scientists have described Earth’s magnetic field as a dynamic shield generated by the liquid iron in our planet’s outer core. A recent study, however, suggests that the field’s electric heartbeat—the flow of magnetic energy within the core—travels in the opposite direction to what traditional models predicted. This reversal…
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Scientists find a surprising twist in Earth’s magnetic field
New findings overturn long-held assumptions about the geodynamo In a striking turn for geophysics, researchers have observed that Earth’s magnetic field is powered by an electric heartbeat that appears to flow in the opposite direction from what traditional models have long predicted. The discovery, based on a combination of satellite data, ocean floor measurements, and…
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Ion Irradiation Studies Of Enceladus Ice Analogues: Can Radiolysis Account For Material In And Around The South Polar Plume?
Introduction Enceladus, one of Saturn’s most intriguing moons, hosts a dynamic south polar plume that ejects icy particles and vapor into space. The surrounding environment is dominated by Saturn’s magnetosphere, a source of trapped plasma and energetic ions that continuously irradiate the moon’s surface. A growing question in astrobiology and planetary science is whether radiolysis—chemical…
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Blazing Auroras on a Sunless World: JWST Sheds Light on SIMP-0136
Introduction: A Sunless World that Dares to Shine In a striking demonstration of how far observational astronomy has come, the James Webb Space Telescope has turned its gaze toward a sunless world known as SIMP-0136. This rogue brown dwarf, free-floating through the galaxy about 20 light-years away in the Pisces constellation, is not bound to…
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Solar storms and solar wind: How the Sun shapes space weather
What are solar wind and solar storms? Every day, Earth experiences weather—wind, rain, and storms. In space, there is also weather, created by the Sun. Two key players in space weather are the solar wind and solar storms. The solar wind is a constant, ever-present flow of charged particles blasting outward from the Sun. Solar…