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fast radio bursts or frbs are

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extraordinary events that generate as

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much energy in a thousandth of a second

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as the sun does in an entire year

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astronomers using nasa's hubble space

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telescope have traced the locations of

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five brief powerful radio blasts to the

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spiral arms of five distant galaxies

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because these radio pulses disappear in

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much less than the blink of an eye

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researchers have had a hard time

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tracking down where they come from and

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what causes them

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locating the galaxies where these blasts

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originate is important in determining

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what astronomical events trigger such

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intense flashes of energy

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the hubble space telescope helped

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researchers narrow the list of possible

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frb sources

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since their discovery astronomers have

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uncovered up to 1000 frbs but only about

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15 are associated with particular

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galaxies

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in this new hubble study of frbs

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astronomers pinpointed where those

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bursts occurred within their specific

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galaxies

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these images display a range of spiral

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arm structures from tightly wound to

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more open revealing how stars are

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distributed along these prominent

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features

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these clues helped researchers rule out

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some of the possible stellar objects

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originally thought to cause these

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brilliant flares including the explosive

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deaths of the youngest most massive

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stars which create gamma-ray bursts and

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some type of supernova

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another unlikely source is the merger of

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neutron stars the crushed cores of stars

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that end their lives in supernova

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explosions

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these mergers take billions of years to

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occur and are usually far from the

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spiral arms of older galaxies that no

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longer form stars

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this study suggests that frbs do not

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originate from the youngest most massive

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stars or from older stars in a galaxy's

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central bulge however it is consistent

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with the leading model that frbs

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originate from young magnetar outbursts

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magnetars are a type of neutron star

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with powerful magnetic fields called the

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strongest magnets in the universe

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magnetars possess a magnetic field 10

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trillion times more powerful than the

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magnets on your refrigerator door

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these magnetic fields lead to flares and

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magnetic processes that can emit radio

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light

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although the hubble results are exciting

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researchers need more observations to

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better pinpoint the source of frbs so

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they can develop a stronger

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understanding of these enigmatic flashes

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this field of study may need a lot more

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research but thanks to observations made

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with the hubble space telescope we're