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APOD: 2024 October 1 Á Porphyrion: The Longest Known Black Hole Jets
Explanation:
How far can black hole jets extend?  
  
A   
new record was found   
just recently with the discovery of a 23-million   
light-year long jet pair from a black hole active billions of years ago.   
  
Dubbed Porphyrion for a mythological Greek giant,   
the impressive jets were created by a type of   
black hole that does not usually create long jets --   
one that is busy creating radiation from infalling gas.  
  
The featured animated video   
depicts what it might look like to circle around this powerful   
black hole   
system.   
  
Porphyrion is shown as a fast stream of   
energetic particles,   
and the bright areas are where these particles are   
impacting surrounding gas.  
  
The discovery was made using data from the   
Keck and   
Mayall    
(DESI)   
optical observatories as well as   
LOFAR  
and the   
Giant Metrewave Radio Telescope.   
  
The existence of   
these jets demonstrates that   
black holes can affect not only their   
home galaxies but   
far out into the surrounding   
universe.   
  
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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 - jet
Publications with words: black hole - jet
See also:
- APOD: 2025 September 24 Á GW250114: Rotating Black Holes Collide
- APOD: 2025 September 3 Á Cir X1: Jets in the Africa Nebula
- APOD: 2025 May 9 Á IXPE Explores a Black Hole Jet
- APOD: 2025 May 6 Á The Doubly Warped World of Binary Black Holes
- APOD: 2025 May 4 Á Spin up of a Supermassive Black Hole
- APOD: 2025 April 9 Á HH 49: Interstellar Jet from Webb
- APOD: 2024 November 24 Á Journey to the Center of the Galaxy