News tagged with galaxy cluster

Image: Magnifying the distant universe

( —Galaxy clusters are some of the most massive structures that can be found in the Universe—large groups of galaxies bound together by gravity. This image from the NASA/ESA Hubble Space Telescope reveals one ...

dateApr 01, 2014 in Astronomy
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Image: X-raying the cosmos

When we gaze up at the night sky, we are only seeing part of the story. Unfortunately, some of the most powerful and energetic events in the Universe are invisible to our eyes – and to even the best optical telescopes.

dateApr 22, 2014 in Astronomy
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Hubble image: Don't trust your eyes

(—The Universe loves to fool our eyes, giving the impression that celestial objects are located at the same distance from Earth. A good example can be seen in this spectacular image produced by the NASA/ESA Hubble ...

dateDec 31, 2012 in Astronomy
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Hubble observes the hidden depths of Messier 77

( —The NASA/ESA Hubble Space Telescope has captured this vivid image of spiral galaxy Messier 77, one of the most famous and well-studied galaxies in the sky. The patches of red across this image highlight pockets ...

dateMar 28, 2013 in Astronomy
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Gravitational telescope creates space invader mirage

(—The NASA/ESA Hubble Space Telescope is one of the most powerful available to astronomers, but sometimes it too needs a helping hand. This comes in the form of Einstein's general theory of relativity, which makes ...

dateMar 05, 2013 in Astronomy
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