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Cosmology

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computer simulation of the universe

A TANGLED SKEIN  This computer simulation of the universe highlights its structure: long filaments of dark matter (blue) with galaxies strung along them like beads (pink). Most of the regular matter is probably stored in gas (orange).

map of dark matter

MATTER MAP  Scientists with the Dark Energy Survey have created the largest map of the universe’s dark matter. Red areas are relatively crammed with dark matter and normal matter, while blue areas are less dense.

MACS J1149

FAR OUT  The gravity of the huge galaxy cluster MACS J1149 bent the light from a bright blue star (one of the faint points of light just above and to the left of the super bright central star in this image), letting it reach us from 9 billion light-years away.

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