Thursday, 10 May 2018

Distribution of dark matter in the galaxy cluster Abell 3827

Dark matter in the galaxy cluster Abell 3827 appears as blue contour lines in this photo by the Hubble Space Telescope

https://www.space.com/40422-are-white-holes-dark-matter.html ...

Friday, 16 March 2018

Centre for Theoretical Cosmology News
Professor Stephen Hawking 1942-2018

http://www.ctc.cam.ac.uk/news/180314_newsitem.php ...

Stephen Hawking

Sunday, 4 March 2018

a good note of New York Times on A series of images from the moment an amateur astronomer caught a supernova on his camera in 2016

On Sept. 20, 2016, Victor Buso, an amateur astronomer in Rosario, Argentina, was checking out the new camera on his telescope by taking .... a good note of New York Times ... https://www.nytimes.com/2018/02/21/science/supernova-photo-camera.html

Foto: cerrajero argentino capta nacimiento de una supernova

Foto: cerrajero argentino capta nacimiento de una supernova: Víctor Buso, un cerrajero argentino aficionado a la astronomía, ha detectado por casualidad una supernova en el momento de su nacimiento, algo muy inusual y que los astrónomos profesionales llevaban décadas tratando de encontrar un acontecimiento así.

Wednesday, 23 August 2017


Wednesday, 28 June 2017

First-Ever Galaxy with Twin Supermassive Black Hole Center Discovered


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NASA. JPL-Caltech
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Seven
hundred and fifty million light-years from Earth is one of the most
peculiar galaxies ever discovered: one with two supermassive black holes
orbiting one another at its center. This is the first confirmed case of
such galaxies existing, although they have been theorized to exist for
years.

The
new paper, by researchers at the University of New Mexico (UNM) and
published in the Astrophysical Journal, claims that the distant galaxy
has two black holes in the center whose mass together is 15 billion
times that of our sun. Every 24,000 years, they orbit one another in one
of the longest orbital periods ever discovered – scientists did not
notice even a slight curvature in orbit during 12 years of observation.

Wednesday, 26 October 2016

Detectan inesperados halos gigantes alrededor de distantes cuásares

Detectan inesperados halos gigantes alrededor de distantes cuásares: Los cuásares, objetos más luminosos y activos del universo, son galaxias activas que contienen agujeros negros supermasivos en su interior, que consumen estrellas, gas y otros materiales a una alta velocidad y provocan la emisión de enormes cantidades de radiación