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Explanation: QUASARs (QUASi-stellAR objects) lie near the edge of the observable Universe. Discovered in 1963, astronomers were astounded that such objects could be visible across billions of light-years, as this implies they must emit prodigious amounts of energy. Where does the energy come from? Many believe the quasar's central engine is a giant black hole fueled by tremendous amounts of infalling gas, dust, and stars. This gallery of quasar portraits from the Hubble Space Telescope offers a look at their local neighborhoods: the quasars themselves appear as the bright star-like objects with diffraction spikes. The images in the center and right hand columns reveal quasars associated with disrupted colliding and merging galaxies which should provide plenty of debris to feed a hungry black hole.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: black hole - quasar
Publications with words: black hole - quasar
See also:
- APOD: 2024 November 24 Á Journey to the Center of the Galaxy
- APOD: 2024 October 1 Á Porphyrion: The Longest Known Black Hole Jets
- APOD: 2024 June 16 Á Animation: Black Hole Destroys Star
- Simulation: Two Black Holes Merge
- The Galaxy, the Jet, and a Famous Black Hole
- APOD: 2024 May 8 Á Visualization: A Black Hole Accretion Disk
- APOD: 2024 May 7 Á Black Hole Accreting with Jet