Supermassive black holes are largest ever discovered

By Dilip -

Astronomers have located the two biggest black holes ever found, each one billions of times more massive than our sun. Observations of these supermassive cosmic objects will give scientists clues on how black holes and galaxies form and evolve, especially in the earliest parts of the universe.
The galaxy NGC 3842, around 320m light years from Earth in the constellation of Leo, has a black hole at its centre with a mass of around 9.7bn suns. An even bigger black hole with a mass of around 21bn suns exists at the heart of galaxy NGC 4889, the brightest galaxy in the Coma cluster, around 336m light years from Earth.
These two newly-discovered supermassive black holes were found by analysing data from the Hubble Space Telescope and two of the biggest ground-based telescopes in the world, the Gemini North and Keck 2 facilities in Hawaii. The work, led by Douglas O Richstone of the department of astronomy at the University of Michigan, Ann Arbor, is published this week in Nature. Until now, the biggest recorded black hole was the one at the centre of the giant elliptical galaxy Messier 87, measuring 6.3bn suns.
Black holes are a one-way ticket to mystery, a place where known physics seems to break down and the space we all familiar with becomes supremely strange. They begin as massive stars (at least six times the mass of our sun) and, after billions of years of shining they collapse in on themselves into a singularity, a point smaller than the full-stop at the end of this sentence.
Albert Einstein's general theory of relativity predicts that, if matter is compressed into a small enough space, the resulting gravity gets so strong that nothing nearby can escape the pull. The boundary of the region where the gravity of a collapsed star beats every other force around is called the event horizon. Pass this point, and there is no coming back, not even for particles of light..

Popular posts from this blog

Third degree torture used on Maruti workers: Rights body

By Dilip -
The People’s Union for Democratic Rights on Tuesday alleged that third degree torture methods were used by the Gurgaon Criminal Investigation Agency while interrogating workers of Maruti Suzuki India Limited’s Manesar plant who are accused of involvement in the killing of an HR manager and the violent attack at the plant on July 18. The PUDR alleged that the Gurgaon CIA investigation “did not seem” to be directed at solving the crime or probing the involvement of the arrested workers in the incidents and crimes recorded in the FIR but instead was based on their involvement in trade union activities. Grave doubts  “The use of third degree torture in police custody, and the securing of arrestees’ signatures on blank papers by the police, gives rise to grave doubts regarding the ability of such an investigation in effectively identifying or arresting those guilty. The police and the State seem keener to reassure Maruti Suzuki Ltd. and ensure that production continues,” the PUDR stat
Read more

Haruki Murakami: On seeing the 100% perfect girl one beautiful April morning

By Dilip -
According to Murakami, “1Q84” is just an amplification of one of his most popular short stories,   which (in its English version) is five pages long. “Basically, it’s the same,” he told me. “A boy meets a girl. They have separated and are looking for each other. It’s a simple story. I just made it long.” One beautiful April morning, on a narrow side street in Tokyo's fashionable Harujuku neighborhood, I walked past the 100% perfect girl. Tell you the truth, she's not that good-looking. She doesn't stand out in any way. Her clothes are nothing special. The back of her hair is still bent out of shape from sleep. She isn't young, either - must be near thirty, not even close to a "girl," properly speaking. But still, I know from fifty yards away: She's the 100% perfect girl for me. The moment I see her, there's a rumbling in my chest, and my mouth is as dry as a desert..." read the story: http://www.youmightfindyourself.com/post/22131227
Read more

The Almond Trees by Albert Camus (1940)

By Dilip -
Image
'Do you know', Napoleon once said to Fontanes, 'what astounds me most about the world?  The impotence of force to establish anything.  There are only two powers in the world: the sword and the mind.  In the end, the sword is always conquered by the mind' Conquerors, you see, are sometimes melancholy.  They have to pay some price for so much vainglory. But what a hundred years ago was true of the sword is no longer true today of the tank. Conquerors have made progress, and the dismal silence of places without intelligence has been established for years at a time in a lacerated Europe. At the time of the hideous wars of Flanders, Dutch painters could still perhaps paint the cockerels in their farmyards. The Hundred Years War has likewise been forgotten, and yet the prayers of Silesian mystics still linger in some hearts. But today, things have changed; the painter and the monk have been drafted - we are one with the world.  The mind has lost that regal certainty which a c
Read more

Rudyard Kipling: critical essay by George Orwell (1942)

By Dilip -
Mother of Cities to me, For I was born in her gate, Between the palms and the sea, Where the world-end steamers wait  Rudyard Kipling , To the City of Bombay "Few people who have criticized England from the inside have said bitterer things about her than this gutter patriot" : George Orwell IT WAS a pity that Mr. Eliot should be so much on the defensive in the long essay with which he prefaces this selection of Kipling's poetry, but it was not to be avoided, because before one can even speak about Kipling one has to clear away a legend that has been created by two sets of people who have not read his works. Kipling is in the peculiar position of having been a byword for fifty years. During five literary generations every enlightened person has despised him, and at the end of that time nine-tenths of those enlightened persons are forgotten and Kipling is in some sense still there. Mr. Eliot never satisfactorily explains this fact, because in answering the shal
Read more

Satyagraha - An answer to modern nihilism

By Dilip -
NB: This is the text of my address to the Eighth East-West Inter-cultural Relations Conference held at Ramjas College, the University of Delhi, on March 17.  The details of the conference may be read here . A pdf file of the address is downloadable here  -  DS Satyagraha - An answer to modern nihilism Dilip Simeon Keynote address to the Eighth East-West Inter-cultural Relations Conference Ramjas College, March 17-18 2016 Zilu stopped for the night at Stone Gate. The gatekeeper said, Where are you from? Zilu said, From the household of Confucius. The gatekeeper said, The one who knows there’s nothing that can be done but keeps on trying?  -  from the Analects of Confucius (14:40) What is truth? asked jesting Pilate, and would not stay for an answer – Francis Bacon In fact it is more correct to say Truth is God than to say God is Truth – Mohandas Gandhi Introduction: The human being is the speaking animal, the discerner of good and evil. This featur
Read more

Three Versions of Judas: Jorge Luis Borges

By Dilip -
Image
In  Asia Minor or in Alexandria, in the second century of our faith (when Basilides was announcing that the cosmos was a rash and malevolent improvisation engineered by defective angels), Nils Runeberg might have directed, with a singular intellectual passion, one of the Gnostic monasteries. Dante would have destined him, perhaps, for a fiery sepulcher; his name might have augmented the catalogues of heresiarchs, between Satornibus and Carpocrates; some fragment of his preaching, embellished with invective, might have been preserved in the apocryphal Liber adversus omnes haereses  or might have perished when the firing of a monastic library consumed the last example of the  Syntagma . Instead, God assigned him to the twentieth century, and to the university city of Lund. There, in 1904, he published the first edition of  Kristus och Judas ; there, in 1909, his masterpiece  Dem hemlige Frälsaren  appeared. (Of this last mentioned work there exists a German version,  Der heimliche Heilan
Read more

Albert Camus's lecture 'The Human Crisis', New York, March 1946. 'No cause justifies the murder of innocents'

By Dilip -
The morning after a great historical crisis, you feel as sad and sick as after a heavy night. But there is no aspirin for historical hangovers .. The world is no longer divided into the just or unjust, but into masters and slaves. He who is right is he who enslaves.  Albert Camus     La crise de l'homme : THE HUMAN CRISIS   (Text read by Viggo Mortensen on March 28 2016)   Ladies and Gentlemen: when I was invited to give a series of lectures in the United States of America, I felt some doubt and hesitation. I am really not old enough to give lectures, and I am more at ease with the process of thinking than I am making categorical statements... since I don't feel I have any claim on what is generally called the truth. I shared this reservation and was very politely told that my personal opinion didn't matter. What mattered was that I'd be able to offer some facts about France so that my listeners could form their own opinions. It was then suggested that I might
Read more