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astrophysics

Latest Articles

astrophysics

Dwarf Galaxies Dim Hopes of Dark Matter

By Natalie Wolchover
October 25, 2014
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For five years physicists have been tantalized by possible evidence of dark matter in the Milky Way’s center. But new results from small satellite galaxies have complicated the story.

BICEP2 graphic.
cosmology

‘Big Bang Signal’ Could All Be Dust

By Natalie Wolchover
September 21, 2014
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Cosmic dust in the high latitudes of the Milky Way could account for the entire swirl pattern that had been presented as proof of a leading Big Bang theory, according to a new data analysis from the Planck satellite.

Blanco telescope.
Q&A

Finding Dark Energy in the Details

By Natalie Wolchover
September 18, 2014
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The astrophysicist Joshua Frieman seeks to pinpoint the mysterious substance driving the accelerating expansion of the universe.

Katherine Freese
Q&A

In Search of Dark Stars

By Tom Siegfried
July 22, 2014
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Katherine Freese, a physicist who will soon lead the Nordic Institute for Theoretical Physics, reflects on the hunt for dark matter and how dark matter heating may have produced the first stars.

Gamma Ray Excess
astrophysics

Case for Dark Matter Signal Strengthens

By Natalie Wolchover
March 3, 2014
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A new analysis strengthens the case that gamma rays emanating from the center of the Milky Way come from dark matter particles known as WIMPs.

Data Driven: The New Big Science

A Digital Copy of the Universe, Encrypted

By Natalie Wolchover
October 2, 2013
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As physics prepares for ambitious projects like the Large Synoptic Survey Telescope, the field is seeking new methods of data-driven discovery.

particle physics

In Hunt for Dark Matter, Promises to Keep?

By Jennifer Ouellette
July 18, 2013
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Whispers of the elusive particles are becoming stronger with a series of signals that appear to be zeroing in on a leading contender.

cosmology

Peering Into the Early Universe

By Natalie Wolchover
March 7, 2013
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Three “extremely large telescopes” poised to begin observations within a decade could help answer some of the universe’s oldest and best-kept secrets.


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