M87 tagged posts

Astronomers reveal First Image of the Black Hole at the Heart of our Galaxy

EHT image of Sgr A* (top; Paper I). Ring-like images dominate the wide range of images obtained across multiple methods, however, variability and sparse visibility domain coverage make selection of a single image impossible (Paper III). The inset images represent different imaging solutions and their associated frequency (histograms).

Astronomers have unveiled the first image of the supermassive black hole at the centre of our own Milky Way galaxy. This result provides overwhelming evidence that the object is indeed a black hole and yields valuable clues about the workings of such giants, which are thought to reside at the centre of most galaxies...

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A Giant Black Hole keeps Evading Detection and scientists can’t explain it

This composite image of the galaxy cluster Abell 2261 contains optical data from NASA's Hubble Space Telescope and Japan's Subaru Telescope showing galaxies in the cluster and in the background, and data from NASA's Chandra X-ray Observatory showing hot gas (colored pink) pervading the cluster. The middle of the image shows the large elliptical galaxy in the center of the cluster.
This composite image of the galaxy cluster Abell 2261 contains optical data from NASA’s Hubble Space Telescope and Japan’s Subaru Telescope showing galaxies in the cluster and in the background, and data from NASA’s Chandra X-ray Observatory showing hot gas (colored pink) pervading the cluster. The middle of the image shows the large elliptical galaxy in the center of the cluster.
(Image: © X-ray: NASA/CXC/Univ of Michigan/K. Gültekin; Optical: NASA/STScI/NAOJ/Subaru; Infrared: NSF/NOAO/KPNO)

An enormous black hole keeps slipping through astronomers’ nets. Supermassive black holes are thought to lurk at the hearts of most, if not all, galaxies...

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