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Grand Theft Sedna: how the sun might have stolen a mini-planet

Space

Grand Theft Sedna: how the sun might have stolen a mini-planet

Sedna is one of several "ice dwarfs" in our solar system with bizarre orbits. Could the young sun's gravity have snatched them from a passing star?

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Hubble at 25: The most inspirational images from space

Hubble at 25: The most inspirational images from space

Features

Supernova space bullets could have seeded Earth's iron core

Supernova space bullets could have seeded Earth's iron core

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Last Word

Drowning sun

Regulars

Millions of missing galaxies found hiding in plain sight

Space

Millions of missing galaxies found hiding in plain sight

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Supernova blast shows stars die in lopsided explosions

Space

Supernova blast shows stars die in lopsided explosions

Regulars

Last Word

Count the dims

Regulars

Stars throw out a lifetime's waste carbon in just 1000 years

Space

Stars throw out a lifetime's waste carbon in just 1000 years

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Baby star before-and-after shows how it gets massive

Space

Baby star before-and-after shows how it gets massive

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Twin Earths may lurk in our nearest star system

Life

Twin Earths may lurk in our nearest star system

Alpha Centauri, just 4.3 light years away, may hold two planets like our own, according to observations with the Hubble Space Telescope

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Space

Black holes devour stars in gulps and nibbles

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Space

Fast star first fled from a supernova, now the galaxy

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Stellar intruder's daring fly-by of the solar system

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Space

Orion has a giant dust hula hoop around its waist

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