Observations suggested the Moon had both a weak and strong magnetic field in the distant past. A new study presents a theory accommodating all the evidence.
unsolved mysteries
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The Planet That Shouldn’t Be There
A newly discovered exoplanet suggests that a different way to build planetary systems could be possible.
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COVID-19 Shutdowns Saw Human Emissions Slow, but Atmospheric Methane Surged
An uptick in wetland emissions, as well as a scarcity of atmospheric OH radicals, contributed to the counterintuitive methane spike.
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What do BLOBs Have to Do with Earth’s Magnetic Field? A Lot, It Turns Out
Enormous provinces of superheated mantle exert a powerful influence over our planet’s magnetic field, researchers have discovered.
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When the Snow Melts, Microbes Bloom
A new study illuminates a complex and changing world of microbes and nitrogen cycling that occurs during the winter.
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Rare Hot Jupiters Could Reveal How All Giant Planets Form
A new analysis shows that the way massive planets migrate after their formation helps determine whether they have companion planets. The process hints at planetary formation in general.
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Oozing Gas Could Be Making Stripes in Mercury’s Craters
Scientists are using new computational tools to analyze troves of old spacecraft data to better understand one of Mercury’s unsolved mysteries.
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Primordial Impact May Explain Why the Moon Is Asymmetrical
Analysis of surface samples from the Chang’e-6 mission suggests that an asteroid may have vaporized parts of the lunar mantle, suppressing volcanic activity on the farside of the Moon.
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Los glaciares se están calentando más lentamente de lo esperado, pero no por mucho tiempo
Un conjunto de datos sin precedentes ofrece información sobre el efecto de enfriamiento contraintuitivo de los glaciares a escala global.
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Plastic Debris Helps Oil Residues Reach Farther Across the Ocean
Scientists matched oil residues found in Florida to a Brazilian spill thousands of miles away.