WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
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Expansion of the universe
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The expansion of the universe is the increase in distance between gravitationally unbound parts of the observable universe with time. It is an intrinsic expansion, so it does not mean that the univers
A graphical representation of the expansion of the universe from the Big Bang to the present day, with the inflationary epoch represented as the drama
A graphical representation of the expansion of the universe from the Big Bang to the present day, with the inflationary epoch represented as the dramatic expansion seen on the left. This visualization shows only a section of the universe; the empty space outside the diagram should not be taken to represent empty space outside the universe (which does not necessarily exist).
Quasar
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A quasar is an extremely luminous active galactic nucleus. It is sometimes known as a quasi-stellar object, abbreviated QSO. The emission from an AGN is powered by accretion onto a supermassive black
Expansion of the universe
…lensing. When a massive foreground object, such as a galaxy, lies directly between the observer and a distant, variable light source (such as a quasar) or a transient (such as a supernova), its gravity bends the incoming light to create multiple images of the background object. Because the light forming…
Artist's image of the accretion disc in ULAS J1120+0641, a very distant quasar containing a supermassive black hole with a mass two billion times that
Artist's image of the accretion disc in ULAS J1120+0641, a very distant quasar containing a supermassive black hole with a mass two billion times that of the Sun
The Chandra X-ray image of PKS 1127-145, a quasar about 10 billion light-years from Earth. An X-ray jet extends at least a million light-years from th
The Chandra X-ray image of PKS 1127-145, a quasar about 10 billion light-years from Earth. An X-ray jet extends at least a million light-years from the quasar. Image is 60 arcseconds on a side. RA 11h 30m 7.10s Dec −14° 49' 27" in Crater. Observation date: May 28, 2000. Instrument: ACIS
Hubble images of quasar 3C 273. At right, a coronagraph blocks the quasar's light, making it easier to see the surrounding host galaxy.
Hubble images of quasar 3C 273. At right, a coronagraph blocks the quasar's light, making it easier to see the surrounding host galaxy.
A cosmic mirage known as the Einstein Cross. Four apparent images are actually from the same quasar.
A cosmic mirage known as the Einstein Cross. Four apparent images are actually from the same quasar.