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1 .This is Scientific American's 60-Second Science. I'm Maria Temming. Got a minute?
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2 .Our sun has a nasty habit of spitting volatile material at us.
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3 .These incredibly hot bubbles of magnetized material are called coronal mass ejections, or CMEs.
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4 .And they can hurtle towards Earth at thousands of miles per second.
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5 .If one of a CME's magnetic fields is aligned in just the wrong way when the ejection reaches Earth,
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6 .it could cause a magnetic storm that can temporarily disrupt the planet's magnetic field.
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7 .Such a storm has the potential to wreak havoc on technologies like GPS satellites and utility grids, messing up radio transmissions and causing blackouts.
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8 .Currently, satellites can only tease out the orientations of magnetic fields inside an approaching CME when it's already closing in on Earth.
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9 .We'd have about an hour's notice of an impending space storm, hardly enough time for anyone to take the necessary protective measures.
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10 .But a team led by space scientist Neel Savani, of NASA and the University of Maryland, have developed a new technique that might be able to give us a lot more lead time.
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11 .Their model uses observations of the CME's magnetic field orientations during the initial eruption and as it careens toward Earth,
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12 .which can offer clues about what those orientations will be when they get here.
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13 .The researchers describe their work in the journal Space Weather.
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14 .Savani has already tested out his model's predictive power on eight mass ejections.
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15 .He claims significant improvement over current forecasting systems.
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16 .At the very least, better advance warning would give people more time to finally back up their hard drives before the grid goes down.
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17 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Maria Temming.
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