Einstein's Cross, a quasar in the Pegasus constellation, is an excellent example of gravitational lensing. The quasar is about 8 billion light-years from Earth, and sits behind a galaxy that is 400 million light-years away. Four images of the quasar appear around the galaxy because the intense gravity of the galaxy bends the light coming from the quasar.

Einstein's Cross, a quasar in the Pegasus constellation, is an excellent example of gravitational lensing. The quasar is about 8 billion light-years from Earth, and sits behind a galaxy that is 400 million light-years away. Four images of the quasar appear around the galaxy because the intense gravity of the galaxy bends the light coming from the quasar.

Astronomers using NASA’s Hubble Space Telescope have spotted for the first time a distant supernova split into four images.

Astronomers using NASA’s Hubble Space Telescope have spotted for the first time a distant supernova split into four images.

Mappa della costellazione

Mappa della costellazione

known as UZC J224030.2+032131 — has not one but five different nuclei. In fact, the core of the galaxy is only the faint and diffuse object seen at the centre of the cross-like structure formed by the other four dots, which are images of a distant q...See More

known as UZC J224030.2+032131 — has not one but five different nuclei. In fact, the core of the galaxy is only the faint and diffuse object seen at the centre of the cross-like structure formed by the other four dots, which are images of a distant q...See More

Using ESO's Very Large Telescope, an international team of astronomers has discovered a stunning rare case of a triple merger of galaxies. This system, which astronomers have dubbed 'The

Using ESO's Very Large Telescope, an international team of astronomers has discovered a stunning rare case of a triple merger of galaxies. This system, which astronomers have dubbed 'The

e9b49f9153f55d68e4359d8bc8d1dde7.jpg 670×1,014 pixels

e9b49f9153f55d68e4359d8bc8d1dde7.jpg 670×1,014 pixels

I think NASA wins the #Aurora pics. Unfair advantage :-) #stunning

I think NASA wins the #Aurora pics. Unfair advantage :-) #stunning

The picture shows a famous cosmic mirage known as the Einstein Cross, and is a direct visual confirmation of the theory of general relativity. It is one of the best examples of the phenomenon of gravitational lensing — the bending of light by gravity as predicted by Einstein in the early 20th century. In this case, the galaxy’s powerful gravity acts as a lens that bends and amplifies the light from the quasar behind it, producing four images of the distant object.

The picture shows a famous cosmic mirage known as the Einstein Cross, and is a direct visual confirmation of the theory of general relativity. It is one of the best examples of the phenomenon of gravitational lensing — the bending of light by gravity as predicted by Einstein in the early 20th century. In this case, the galaxy’s powerful gravity acts as a lens that bends and amplifies the light from the quasar behind it, producing four images of the distant object.

How Galaxies are Classified by Type (Infographic) by Karl Tate, Infographics Artist

How Galaxies are Classified by Type (Infographic) by Karl Tate, Infographics Artist

Spectacular 'Edge-On' Galaxy ESO 243-49 Lenticular:

Spectacular 'Edge-On' Galaxy ESO 243-49 Lenticular:

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