A long-term study of MeV electron burst events detected in the inner radiation belt and slot region was used to determine the electron belt decay times.
Space & Planets
Posted inNews
Planet-Eating Stars Hint at Earth’s Ultimate Fate
A sampling of aging Sun-like stars demonstrates that they likely eat their closest planets.
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Fungi, Fertilizer, and Feces Could Help Astronauts Grow Plants on the Moon
A new study offers tantalizing evidence that filamentous fungi extending from roots, along with treated astronaut waste, could provide sufficient scaffolding to help plants grow in planetary regolith.
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Uranus’s Small Moons Are Dark, Red, and Water-Poor
…Except for Mab, which is even weirder than expected.
Posted inResearch Spotlights
Maybe That’s Not Liquid Water on Mars After All
A “very large roll” of a radar instrument offers new insight into a highly reflective area near the Martian south pole.
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Sediments Hint at Large Ancient Martian Moon
Regular, alternating layers in Gale Crater may have been deposited as the result of tides raised by a moon at least 18 times the mass of Phobos, a study says.
Posted inResearch Spotlights
Key Driver of Extreme Winds on Venus Identified
A new study suggests that a once-daily atmospheric tidal cycle may be a bigger driver of rapid Venusian winds than previously thought.
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Speedy Flyby Adds New Organics to Enceladus’s “Primordial Soup”
A new analysis of old Cassini data has also verified past detections of complex organics in Saturn’s E ring, strengthening the chemical ties between the ring and its progenitor.
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A Weak Spot in Earth’s Magnetic Field Is Going from Bad to Worse
This could be bad news for satellites and spacefarers.
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What Tumbling Asteroids Tell Us About Their Innards
Data from the Gaia space observatory reveal that many slowly spinning asteroids rotate chaotically. A new theory links that chaos to their inner structure and history.