Astronomers discover 83 supermassive black holes 13 billion light-years away

Agencies
March 15, 2019

Washington, Mar 15: Astronomers have discovered 83 quasars powered by supermassive black holes 13 billion light-years away from the Earth, from a time when the universe was less than 10 per cent of its present age.

“It is remarkable that such massive dense objects were able to form so soon after the Big Bang,” said Michael Strauss, a professor at Princeton University in the US.

“Understanding how black holes can form in the early universe, and just how common they are, is a challenge for our cosmological models,” Strauss said in a statement.

This finding, published in The Astrophysical Journal, increases the number of black holes known at that epoch  considerably, and reveals, for the first time, how common they are early in the universe’s history.

In addition, it provides new insight into the effect of black holes on the physical state of gas in the early universe in its first billion years.

Supermassive black holes, found at the centers of galaxies, can be millions or even billions of times more massive than the Sun.

While they are prevalent today, it is unclear when they first formed, and how many existed in the distant early universe.

A supermassive black hole becomes visible when gas accretes onto it, causing it to shine as a “quasar.” Previous studies have been sensitive only to the very rare, most luminous quasars, and thus the most massive black holes.

The new discoveries probe the population of fainter quasars, powered by black holes with masses comparable to most black holes seen in the present-day universe.

The team used data taken with “Hyper Suprime-Cam” (HSC) instrument, mounted on the Subaru Telescope of the National Astronomical Observatory of Japan, which is located on the summit of Maunakea in Hawaii.

The researchers selected distant quasar candidates from the sensitive HSC survey data.

They then carried out an intensive observational campaign to obtain spectra of those candidates, using three telescopes: the Subaru Telescope; the Gran Telescopio Canarias on the island of La Palma in the Canaries, Spain; and the Gemini South Telescope in Chile.

The survey revealed 83 previously unknown very distant quasars.

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ABDUL AZIZ SHE…
 - 
Saturday, 16 Mar 2019

SUBHAANALLAH

 

 
ALLAH ALMIGHTY CREATED EVERTHING  INCLUDING WHOLE UNIVERSE AND WHAT IS IN IT,

HUMAN BEING CANNOT REACH TO UNDERSTAND IT,  HUMAN LIFE NOT SUFFEICENT TO REACH AND KNOW EVERYTHING.

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News Network
November 22,2025

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The Israeli regime’s forces have killed two Palestinian children in the Gaza Strip every day since the ceasefire began in early October, UNICEF has warned.

The UN children’s agency said on Friday that Israeli forces continue to attack Palestinians in Gaza even though the agreement was meant to stop the killing.

“Since 11 October, while the ceasefire has been in effect, at least 67 children have been killed in conflict-related incidents in the Gaza Strip. Dozens more have been injured. That is an average of almost two children killed every day since the ceasefire took effect,” UNICEF spokesperson Ricardo Pires said in Geneva, reminding that each number in the statistics represents a child whose life had ended violently.

“These are not statistics,” he said. “Each child had a story, a family, and a future that was stolen from them.”

Data from Palestinian factions, human rights groups, and government bodies recorded since the US-brokered ceasefire deal went into effect on October 10 show that Israeli forces have carried out numerous attacks, each constituting a separate ceasefire violation.

UNICEF teams say they repeatedly continue to witness heart-wrenching scenes of fearful Palestinian children sleeping outdoors with amputated limbs, while others live as orphans in flooded, makeshift shelters.

“I saw this myself in August. There is no safe place for them. The world cannot normalize their suffering,” Pires said, lamenting that the UN could “do a lot more if the aid that is really needed was entering faster.”

The UNICEF spokesperson warned that with the advent of winter, the risks for hundreds of thousands of displaced children will increase.

He warned, “The stakes are incredibly high” for children as winter acts as a threat multiplier, where children have no heating, no insulation, and few blankets. He said respiratory infections rise.

“Too many children have already paid the highest price,” Pires said. “Too many are still paying it, even under a ceasefire. The world promised them it would stop and that we would protect them.”

“Now we must act like it,” the UNICEF spokesperson added.

Since the Israeli regime launched its genocidal war against Palestinians in Gaza in October 2023, it has killed nearly 70,000 people in the territory, most of them women and children, and injured over 170,000 more, while reducing most of the structures in the enclave to rubble.

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News Network
November 21,2025

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Udupi: The Malpe Police have arrested two men from Uttar Pradesh for allegedly sharing classified information related to Indian Navy vessels with individuals in Pakistan, posing a serious threat to national security.

According to a complaint filed by the CEO of Udupi Cochin Shipyard, Malpe—an institution under the Union Ministry of Ports, Shipping and Waterways—the prime accused, Rohit (29), was working as an insulator through subcontractor M/S Shushma Marine Pvt Ltd. He had earlier served at Cochin Shipyard Limited in Kochi, Kerala, where naval ships are under construction.

Udupi SP Hariram Shankar said the accused had unlawfully shared, via WhatsApp, confidential identification numbers of Navy-related ships and other classified details while working in Kerala, allegedly for illegal gains.

After joining the Malpe shipyard unit, Rohit reportedly continued collecting sensitive information through a friend in Kochi and circulated it to unauthorised individuals, violating national security protocols and potentially endangering India’s sovereignty, unity, and integrity.

Based on the complaint, Malpe Police registered a case under Section 152 of the Bharatiya Nyaya Sanhita (BNS) and Sections 3 and 5 of the Official Secrets Act, 1923.

A police team led by Karkala Subdivision Assistant Superintendent of Police Harsha Priyamvada—along with PSI Anil Kumar D, ASI Harish, and PC Ravi Jadhav—conducted the investigation and arrested the two accused, identified as Rohit (29) and Santri (37), both residents of Sultanpur district, Uttar Pradesh.

The duo was produced before the court, which remanded them in judicial custody till December 3. Further investigation is in progress.

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News Network
November 21,2025

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Local authorities say the Israeli military has expanded the so-called “yellow line” truce demarcation in Gaza City and repositioned its forces deeper into the territory in violation of a ceasefire agreement that came into force on October 10, besieging dozens of Palestinian families.

Gaza’s Government Media Office announced in a statement on Thursday that Israeli forces widened the boundary by shifting the markers, and advanced roughly 300 meters (984 feet) into the neighborhoods of Ash-Shaaf, An-Nazzaz and Baghdad Street.

The move pushed further into civilian areas, trapping families who were unable to flee as tanks rolled forward, it added.

“The fate of many of these families remains unknown amidst the shelling that targeted the area,” the office said, adding that the expansion of the yellow line shows a “blatant disregard” for the ceasefire deal.

On Friday, sources said the Israeli military carried out continued air and artillery strikes inside the so-called “yellow line” east of Khan Younis in the southern Gaza Strip.

According to the reports, Israeli warplanes and tanks targeted areas within the zone. One Palestinian was reported killed and several others wounded in the strikes, the sources said.

The fresh aggression came only a day after 25 Palestinians were killed in Israeli airstrikes on Gaza City and Khan Younis on Wednesday.

The media office reported that Israel has consistently violated the truce deal since its implementation last month, with near-daily attacks by air, artillery and direct shootings.

The office said over 400 violations have been documented. These breaches have resulted in the deaths of more than 300 Palestinians and left hundreds injured.

The Government Media Office in Gaza urged the guarantors of the ceasefire — the US, Egypt, Qatar and Turkey — to take swift action to halt the ongoing violations and facilitate the delivery of food, shelter materials, medical aid, and infrastructure equipment.

The so-called “yellow line,” set out in the agreement between Israel and Hamas resistance movement, refers to a non-physical partition where the Israeli military repositioned itself when the truce deal took effect.

It has allowed Israel, which routinely fires at Palestinians who approach the line, to retain control over more than half of the Gaza Strip.

International bodies, including the UN Independent International Commission of Inquiry, the International Association of Genocide Scholars, Amnesty International, Human Rights Watch, B’Tselem, and other rights groups, have concluded that the Israeli war on Gaza amounts to genocide.

In the attacks in Gaza since October 2023, Israel has killed at least 69,546 people and injured 170,833 others, leveling large swaths of the territory and displacing almost all of the population. 

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