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.

Hubble Discovers Four Images of Same Supernova Split by Cosmic Lens

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

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

Mappa della costellazione

Mappa della costellazione

Words of wisdom found in math formulas

Words of wisdom found in math formulas

Infograph Extravaganza - Gallery

Infograph Extravaganza

Infograph Extravaganza - Gallery

Planet Earth At Night  http://astronomyisawesome.com/solar-systems/cool-facts-about-earth/

Planet Earth At Night http://astronomyisawesome.com/solar-systems/cool-facts-about-earth/

ESO 510-G13, a spiral galaxy approximately 150 million light-years away in the constellation Hydra.

ESO 510-G13, a spiral galaxy approximately 150 million light-years away in the constellation Hydra.

Halley's Comet: Returning to a sky near you in 2061! (think you'll be around then? lol)

Halley's Comet: Returning to a sky near you in 2061! (think you'll be around then? lol)

The mysterious celestial objects called quasars are some of the brightest objects in our universe. Quasars are actually galaxies with powerful black holes at their centers, sucking in matter and spitting out gouts of x-rays that create a massive, broiling-hot cloud.

This Is What a Quasar Looks Like

The mysterious celestial objects called quasars are some of the brightest objects in our universe. Quasars are actually galaxies with powerful black holes at their centers, sucking in matter and spitting out gouts of x-rays that create a massive, broiling-hot cloud.

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