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Keywords: , gravitational lens, arcs, , galaxy cluster
![Абель 2744: скопление Пандоры](https://images.astronet.ru/pubd/2011/06/29/0001252628/abell2744_hst_900.preview.jpg)
29.06.2011
Why is this cluster of galaxies so jumbled? Far from a smooth distribution, Abell 2744 not only has knots of galaxies, but the X-ray emitting hot gas (colored red) in the cluster appears distributed differently than the dark matter.
![Гравитационное линзирование на галактике](https://images.astronet.ru/pubd/2002/09/26/0001179887/glens2_hst_big.preview.gif)
19.12.1995
Sometimes it takes a keen eye to see a good mirage. Around the center of the red galaxy image in the above photograph lie four blue "smudges." Each smudge is actually a different image of the same background quasar. The central galaxy happens to fall directly in the light path of the quasar.
![Галерея гравитационных миражей](https://images.astronet.ru/pubd/2006/01/06/0001210814/lenses_hst_big.preview.jpg)
1.06.1999
The deeper you peer into the universe, the harder it is to see straight. The reason is that distant galaxies act as gravitational lenses, deflecting light that passes nearby. These deflections result in the distortion of background sources, and in some cases the creation of multiple images.
![Гравитационная линза Крест Эйнштейна](https://images.astronet.ru/pubd/2000/12/19/0001162082/qso2237_wiyn.preview.jpg)
10.10.2000
Most galaxies have a single nucleus -- does this galaxy have four? The strange answer leads astronomers to conclude that the nucleus of the surrounding galaxy is not even visible in this image. The central cloverleaf is rather light emitted from a background quasar.
![PG 1115+080 - призрак прошлого](https://images.astronet.ru/pubd/2004/08/12/0001199111/pg1115_hst_big.preview.jpg)
1.11.1998
In this tangle of quasars and galaxies lies a clue to the expansion rate of the universe. A diffuse glow evident in the picture on the left reveals a normal elliptical galaxy. Directly behind this galaxy lies a normal quasar.
![Массивное скопление галактик в молодой Вселенной](https://images.astronet.ru/pubd/2004/08/09/0001198925/massclus_hst.preview.jpg)
21.08.1998
Conventional theories suggest that this cluster of galaxies should not exist. Each fuzzy spot in this false-color Hubble Space Telescope image of the central regions of a newly discovered galaxy cluster is a galaxy similar in mass to our own Milky Way.
![SDSSJ1430: галактика и кольцо Эйнштейна](https://images.astronet.ru/pubd/2008/07/28/0001228940/j1430lens_sdss.preview.jpg)
28.07.2008
What's large and blue and can wrap itself around an entire galaxy? A gravitational lens mirage. Pictured above on the left, the gravity of a normal white galaxy has gravitationally distorted the light from a much more distant blue galaxy.
![Гравитационная линза "Крест Эйнштейна"](https://images.astronet.ru/pubd/2010/02/07/0001238408/qso2237_wiyn.preview.jpg)
6.02.2010
Most galaxies have a single nucleus -- does this galaxy have four? The strange answer leads astronomers to conclude that the nucleus of the surrounding galaxy is not even visible in this image. The central cloverleaf is rather light emitted from a background quasar.
![Карта темной материи](https://images.astronet.ru/pubd/2003/08/14/0001192308/cl0024_hstcomp_c2.preview.jpg)
14.08.2003
The total mass within giant galaxy cluster CL0025+1654, about 4.5 billion light-years away, produces a cosmic gravitational lens -- bending light as predicted by Einstein's theory of gravity and forming detectable images of even more distant background galaxies.
![Парение массивной черной дыры](https://images.astronet.ru/pubd/2006/11/10/0001217562/bhlens_hst_big.preview.jpg)
18.01.2000
A black hole glides silently through space. Is there any way to know it's there? Until last week, all objects that might be black holes in our Galaxy were part of binary star systems.
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