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A heavyweight candidate for dark matter

Looking at dark matter: this photo is a montage of several images and shows the colliding galaxy clusters collectively known as the “Bullet Cluster” (1E 0657-56). The galaxies visible in optical light in the background image are overlaid with X-rays ...

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A long time ago, galaxies far, far away

A long time ago, galaxies far, far away Astronomers discover vast ancient galaxies, which could shed light on dark matter Astronomers used the combined power of multiple astronomical observatories around the world and in space to discover a treasure-trove of ...

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An Identity Problem

The black hole in the middle of a Seyfert galaxy is surrounded by a cloud of dust that blocks the broad emission spectra from the material near the center. Photo Credit: NASA An Identity Problem Scientists resolve the nature of ...

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Anatomy of a Cosmic Seagull

The Rosy Glow of a Cosmic Seagull Colourful and wispy Sharpless 2-296 forms the “wings” of an area of sky known as the Seagull Nebula — named for its resemblance to a gull in flight. This celestial bird contains a ...

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Star Light, Star Bright

The nebula remains of a dead giant star surround the remaining subdwarf O star, another kind of hot subdwarf. Photo Credit: European Southern Observatory Star Light, Star Bright Scientists discover a new type of pulsating star By Harrison Tasoff Scientists ...

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