galaxy M87 on a scale below that expected for its event horizon. Pictured, the dark central region is not the event horizon, but rather the black hole's shadow -- the central region of emitting gas darkened by the central black hole's gravity. The size and shape of the shadow is determined by bright gas near the event horizon, by strong gravitational lensing deflections, and by the black hole's spin. In resolving this black hole's shadow, the Event Horizon Telescope (EHT) bolstered evidence that Einstein's gravity works even in extreme regions, and gave clear evidence that M87 has a central spinning black hole of about 6 billion solar masses. Since releasing this featured image in 2019, the EHT has expanded to include more telescopes, observe more black holes, track polarized light,and is working to observe the immediately vicinity of the black hole in the center of our Milky Way Galaxy.
This week is:
Black Hole Week
New EHT Results to be Announced: Next Thursday
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
Publications with words: black hole
- The Galaxy, the Jet, and a Famous Black Hole
- Two Black Holes Dancing in 3C 75
- The Milky Way s Black Hole
- EHT Resolves Central Jet from Black Hole in Cen A
- GW200115: Simulation of a Black Hole Merging with a Neutron Star
- Animation: Black Hole Star Shredder
- The Doubly Warped World of Binary Black Holes