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Astrophysics milestone: First ever photo of black hole expected this Wednesday

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Washington: Scientists are expected to unveil the first-ever photograph of a black hole this week.
If they do, it will mark a major breakthrough in astrophysics and could provide new insight into the giant celestial monsters.
The US National Science Foundation says it will announce during a press conference “a groundbreaking result” from the Event Horizon Telescope (EHT) project.
The announcement is scheduled to take place on April 10 at 9:00am (Washington time).
Simultaneous news conferences are also scheduled in Brussels, Santiago, Shanghai, Taipei and Tokyo.
Science fiction paints black holes as all-consuming monsters but, for astronomers, there’s no cooler place to try and see. Listen as Cosmic Vertigo disappears beyond the event horizon.
Scientists from the EHT project are keeping tight-lipped about their findings, but it’s widely expected they will show at least one photo of a black hole.
The project was formed seven years ago with the aim of directly observing the immediate environment of a black hole.
“It’s a visionary project to take the first photograph of a black hole. We are a collaboration of over 200 people internationally,” the project’s director, astrophysicist Sheperd Doeleman, said at an event in March.
To do so, the scientists linked a series of radio telescope dishes across the globe to create “a virtual Earth-sized telescope”.
The researchers then targeted two supermassive black holes.
The first — called Sagittarius A* — is situated 26,000 light years from Earth at the centre of our own Milky Way galaxy, and is 4 million times the mass of our Sun.
A light year is the distance light travels in a year: 9.5 trillion kilometres.
The second — called M87 — resides 54 million light-years away from Earth at the centre of the neighbouring Virgo A galaxy, with a mass 3.5 billion times that of the Sun.
The first data was then obtained in April 2017.
Black holes aren’t the cosmic vacuum cleaners they are sometimes made out to be, but they are extremely fun to study.
Black holes form when very massive stars collapse at the end of their life cycle.
They are extraordinarily dense entities and have gravitational fields so intense no matter can escape being sucked in, including stars, planets, gas, dust and light.
The fact that black holes do not allow light to escape makes viewing them difficult.
So the scientists are instead looking for the ring of light around the black hole — the radiation and matter circling at tremendous speed around the edge of the event horizon.
The scientists behind the EHT project said they would aim to capture a razor-sharp image, but warned it wouldn’t be easy.
“The quality of the images depends on the arrangement of the telescope array, weather conditions at the telescope sites, as well as blurring of images as the light travels from the black hole toward the Earth,” the project’s website says.
The research will put to the test one of the pillars of science — physicist Albert Einstein’s theory of general relativity — according to University of Arizona astrophysicist Dimitrios Psaltis, project scientist for the EHT.
That theory, put forward in 1915, was intended to explain the laws of gravity and their relation to other natural forces.
“The shape of the [black hole’s] shadow will be almost a perfect circle in Einstein’s theory,” Dr Psaltis said.
“If we find it to be different than what the theory predicts, then we go back to square one and we say, ‘Clearly, something is not exactly right’.”


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Abrogation of Article 370 : Constitution bench to begin hearing from December 10

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NEW DELHI: The Constitution Bench of the Supreme Court will begin hearing on a batch of petitions challenging the abrogation of Article 370 by the Centre and the reorganisation of the former state of Jammu and Kashmir into two Union Territories from December 10.

The matter was listed for hearing on Thursday but the top court postponed the hearing in the case till December 10.

It may be recalled that a batch of petitions had been filed in the top court by leading Kashmiri politicians and activists challenging the Centre’s August 5 move to abrogate Article 370 that gave special status to the former state of Jammu and Kashmir.

 

In its October 24 order, the Supreme Court had said that the petitions challenging the validity of provisions of Article 370, which was abrogated by the Centre on August 5, and Article 35-A would be dealt with by its 5-judge Constitution bench which is hearing the Kashmir matter.

Some of the petitioners had then told the top court that they have filed pleas challenging the existence of provisions of Articles 370 and 35-A which granted special status to J&K before the Centre came out with the decision to abrogate them.

The five-judge constitution bench had on October 1 given four weeks to the Centre and Jammu and Kashmir administration to file counter-affidavits on the petitions and also put an embargo on the filing of any fresh writ petition challenging the constitutional validity on abrogation of Article 370.

In 2014, an NGO ‘We The Citizens’ had filed a petition in the apex court challenging the constitutional validity of Article 35A. Later, six other pleas were also filed in the top court on the issue.

The top court had then dismissed the pleas and directed the petitioners to approach the high court.

Article 35A, which was incorporated in the Constitution by a 1954 Presidential Order, accorded special rights and privileges to the citizens of Jammu and Kashmir and bars people from outside the state from acquiring any immovable property in the state.

It denied property rights to a woman who marries a person from outside the state. The provision, which leads to such women from the state forfeiting their right over property, also applied to their heirs.

However, after the Centre’s move to scrap the Article 370, the provisions of Article 35A became null and void and all central rules became applicable in J&K after it was formally split in two Union Territories on the night of October 31.

Article 370 was included in the Constitution as a “temporary provision”. Courtesy this section, the residents of J&K lived under a separate set of laws dealing with property ownership and citizenship. Article 370 also fanned separatist emotions and enabled terrorism, the ruling BJP had contended while introducing the bill.

The two new UTs came into existence on the 144th birth anniversary of Sardar Vallabhbhai Patel, who played a crucial role in integrating 560 princely states into India.

After the bifurcation of J&K, the number of states in India stands at 28, and UTs at nine.

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LG reviews school edu, languishing projects

Monitor News Bureau

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Jammu, Nov 13: Lt. Governor Girish Chandra Murmu reviewed the progress of languishing projects being funded by the Jammu and Kashmir Infrastructure Development Finance Corporation Ltd. He also reviewed the status of Prisons department and School Education sector in separate meetings held at the Civil Secretariat, here on Wednesday.

BVR Subrahmanyam, Chief Secretary; Arun Kumar Mehta, Financial Commissioner, Finance; Bipul Pathak, Principal Secretary to Lt. Governor were among the officers present on the occasion.

Mehta informed Lt. Governor that JKIDFC has taken up 2,274 languishing projects with an investment of Rs. 9111.25 crore.

 

Lt. Governor directed Mehta to give preference to local labour and oversee that the labour laws are being adhered to by the agencies responsible for engaging workforce and check whether insurance cover is available to all of them.

He stressed keeping provision for maintenance of all the assets and creation of amenities like overhead water tanks, library, common field in all the residential projects. He emphasised strict quality control, use of anti corrosion building material, compressive strength test for roads and suggested avoiding cost and time overruns in infrastructure projects.

Lt. Governor advised wide publicity of the completed projects with dissemination of information regarding date of sanctioning and completion of the project so that people become aware of the facilities created for their convenience.

In another meeting of the Department of Home attended by Shaleen Kabra, Principal Secretary Home and V.K. Singh, DGP Prisons, a detailed presentation was given by Kabra on the status of available infrastructure, occupancy of jails and present capacity. He informed about the initiatives of the Department of Prisons for welfare of prisoners.

Lt. Governor discussed in detail the status of under trials, convicts, condemned and detenues under the common law and militancy related laws. He directed fast track recruitment of staff on vacant positions and completion of all the under construction infrastructure projects of the Department at the earliest.

During the review of School Education department which was attended by Sarita Chouhan, Commissioner Secretary School Education and Directors of Education, Lt. Governor advised regular health check-ups of students at least twice a year and generation of their health cards. Lt. Governor suggested check-ups in presence of parents so that they could be made aware of their children’s health issues. He directed for creating health check up calendars in consultation with Health Department.

Lt. Governor suggested regular training for improving quality of teaching, survey of facilities available in science and computer laboratories, check availability of drinking water and toilet facilities in schools, identify vacancies of lecturers and teachers for the next 5 years.

The Secretary School Education was directed to organise first health check up in the month of December in  summer zone and in the month of March in schools falling under winter zone. She was asked to ensure 100 % availability of drinking water supply in all the schools by 31st December 2019 and complete survey of science and computer laboratories within the next 15 days.

Lt. Governor directed for filling up vacant positions in the department at the earliest and stressed enhanced focus on schools having Gross Enrolment Ratio of less than 25 %.

Accords sanction to contingency fund

Jammu, Nov 13: Lieutenant Governor, Girish Chandra Murmu under section 69 of J&K Reorganization Act, 2019 Wednesday accorded sanction for the establishment of “Contingency Fund” for the Union Territory of the Jammu and Kashmir.

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Journos protest against 100 days of internet blackout

Press Trust of India

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Srinagar, Nov 12: Journalists in the Valley took out a protest march here against the continued suspension of internet services which completed 100 days on Tuesday since the abrogation of the Jammu and Kashmir’s special status on August 5.

Scores of journalists working with different media organisations assembled at the Kashmir Press Club here and took out a protest march against the snapping of internet services in the Valley on the night of August 4, hours before the Centre revoked the state’s special status under Article 370 and abrogated it into two Union Territories.

The journalists demanded immediate restoration of the services to facilitate the media persons to discharge their professional duties.

 

“We took out the protest against the suspension of internet services for 100 days now. Internet is a basic took for journalists to discharge their professional duties and we demand its immediate restoration,” senior journalist Pervez Bukhari told reporters after the protest.

The Centre’s August 5 decision led to an unannounced shutdown in the valley even as authorities imposed severe restrictions, including on communication, which were later gradually eased out.

Postpaid mobile services on all networks were restored in the Valley on October 14, 72 days after they were snapped. However, pre-paid mobile phones and all internet services continue to remain suspended since August 5.

The government has set up a ‘Media Facilitation Centre’ at a conference hall of a local hotel here for journalists to discharge their professional duties. But the media persons complain that it has not enough computers and they have to wait for hours for their turn.

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