Scientists reveal first image ever made of a black hole

The Canadian Press

Published

6 years ago

7 minute read

WASHINGTON — Scientists on Wednesday revealed the first image ever made of a black hole, depicting its hot, shadowy edges where light bends around itself in a cosmic funhouse effect.

Assembling data gathered by eight radio telescopes around the world, astronomers created the picture showing the violent neighbourhood around a supermassive black hole, the light-sucking monsters of the universe theorized by Einstein more than a century ago and confirmed by observations for decades.

It looked like a flaming orange, yellow and black ring.

“We have seen what we thought was unseeable. We have seen and taken a picture of a black hole. Here it is,” said Sheperd Doeleman of Harvard.

Jessica Dempsey, a co-discoverer and deputy director of the East Asian Observatory in Hawaii, said it reminded her of the powerful flaming Eye of Sauron from the “Lord of the Rings” trilogy.

Unlike smaller black holes that come from collapsed stars, supermassive black holes are mysterious in origin. Situated at the centre of most galaxies, including ours, they are so dense that nothing, not even light, can escape their gravitational pull. This one’s “event horizon” — the point of no return around it, where light and matter begin to fall inexorably into the abyss — is as big as our entire solar system.

Three years ago, scientists using an extraordinarily sensitive observing system heard the sound of two much smaller black holes merging to create a gravitational wave, as Albert Einstein predicted. The new image, published in the Astrophysical Journal Letters and announced around the world in several news conferences, adds light to that sound.

Outside scientists suggested the achievement could be worthy of a Nobel Prize, just like the gravitational wave discovery.

While much around a black hole falls into a death spiral and is never to be seen again, the new image captures “lucky gas and dust” circling at just far enough to be safe and seen millions of years later on Earth, Dempsey said.

Taken over four days when astronomers had “to have the perfect weather all across the world and literally all the stars had to align,” the image helps confirm Einstein’s general relativity theory, Dempsey said. Einstein a century ago even predicted the symmetrical shape that scientists just found, she said.

“It’s circular, but on one side the light is brighter,” Dempsey said. That’s because that light is approaching Earth.

The measurements are taken at a wavelength the human eye cannot see, so the astronomers added colour to the image. They chose “exquisite gold because this light is so hot,” Dempsey said. “Making it these warm gold and oranges makes sense.”

What the image shows is gas heated to millions of degrees by the friction of ever-stronger gravity, scientists said. And that gravity creates a funhouse effect where you see light from both behind the black hole and behind you as the light curves and circles around the black hole itself, said astronomer Avi Loeb, director of the Black Hole Initiative at Harvard. (The lead scientists in the discovery are from Harvard, but Loeb was not involved.)

The project cost $50 million to $60 million, with $26 million of that coming from the National Science Foundation.

Johns Hopkins astrophysicist Ethan Vishniac, who was not part of the discovery team but edits the journal where the research was published, pronounced the image “an amazing technical achievement” that “gives us a glimpse of gravity in its most extreme manifestation.”

He added: “Pictures from computer simulations can be very pretty, but there’s literally nothing like a picture of the real universe, however fuzzy and monochromatic.”

“It’s just seriously cool,” said John Kormendy, a University of Texas astronomer who wasn’t part of the discovery team. “To see the stuff going down the tubes, so to speak, to see it firsthand. The mystique of black holes in the community is very substantial. That mystique is going to be made more real.”

There is a myth that says a black hole would rip you apart, but Loeb and Kormendy said the one pictured is so big, someone could fall into it and not be torn to pieces. But the person would never be seen from again.

Black holes are “like the walls of a prison. Once you cross it, you will never be able to get out and you will never be able to communicate,” Loeb said.

The first image is of a black hole in a galaxy called M87 that is about 53 million light years from Earth. One light year is 5.9 trillion miles, or 9.5 trillion kilometres. This black hole is about 6 billion times the mass of our sun.

The telescope data was gathered by the Event Horizon Telescope two years ago, but it took so long to complete the image because it was a massive undertaking, involving about 200 scientists, supercomputers and hundreds of terabytes of data delivered worldwide by plane.

The team looked at two supermassive black holes, the M87 and the one at the centre of our own Milky Way galaxy. The one in our galaxy is closer but much smaller, so they both look the same size in the sky. But the more distant one was easier to take pictures of because it rotates more slowly.

“We’ve been hunting this for a long time,” Dempsey said. “We’ve been getting closer and closer with better technology.”

___

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.

Seth Borenstein, The Associated Press

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Ottawa’s avalanche of spending hasn’t helped First Nations

Published on November 19, 2024

Todayville

From the Fraser Institute

By Tom Flanagan

When Justin Trudeau came to power in 2015, he memorably said that the welfare of Indigenous Canadians was his highest priority. He certainly has delivered on his promise, at least in terms of shovelling out money.

During his 10 years in office, budgeted Indigenous spending has approximately tripled, from about $11 billion to almost $33 billion. Prime Minister Trudeau’s instruction to the Department of Justice to negotiate rather than litigate class actions has resulted in paying tens of billions of dollars to Indigenous claimants over alleged wrongs in education and other social services. And his government has settled specific claims—alleged violations of treaty terms or of the Indian Act—at four times the previous rate, resulting in the award of at least an additional $10 billion to First Nations government.

But has this avalanche of money really helped First Nations people living on reserves, who are the poorest segment of Canadian society?

One indicator suggests the answer is yes. The gap between reserves and other communities—as measured by the Community Well-Being Index (CWB), a composite of income, employment, housing and education—fell from 19 to 16 points from 2016 to 2021. But closer analysis shows that the reduction in the gap, although real, cannot be due to the additional spending described above.

The gain in First Nations CWB is due mainly to an increase in the income component of the CWB. But almost all of the federal spending on First Nations, class-action settlements and specific claims do not provide taxable income to First Nations people. Rather, the increase in income documented by the CWB comes from the greatly increased payments legislated by the Liberals in the form of the Canada Child Benefit (CCB). First Nations people have a higher birth rate than other Canadians, so they have more children and receive more (on average) from the Canada Child Benefit. Also, they have lower income on average than other Canadians, so the value of the CCB is higher than comparable non-Indigenous families. The result? A gain in income relative to other Canadians, and thus a narrowing of the CWB gap between First Nations and other communities.

There’s an important lesson here. Tens of billions in additional budgetary spending and legal settlements did not move the needle. What did lead to a measurable improvement was legislation creating financial benefits for all eligible Canadian families with children regardless of race. Racially inspired policies are terrible for many reasons, especially because they rarely achieve their goals in practise. If we want to improve life for First Nations people, we should increase opportunities for Canadians of all racial backgrounds and not enact racially targeted policies.

Moreover, racial policies are also fraught with unintended consequences. In this case, the flood of federal money has made First Nations more dependent rather than less dependent on government. In fact, from 2018 to 2022, “Own Source Revenue” (business earnings plus property taxes and fees) among First Nations bands increased—but not as much as transfers from government. The result? Greater dependency on government transfers.

This finding is not just a statistical oddity. Previous research has shown that First Nations who are relatively less dependent on government transfers tend to achieve higher living standards (again, as measured by the CWB index). Thus, the increase in dependency presided over by the Trudeau government does not augur well for the future.

One qualification: this finding is not as robust as I would like because the number of band governments filing reports on their finances has drastically declined. Of 630 First Nation governments, only 260 filed audited statements for fiscal 2022. All First Nations are theoretically obliged by the First Nations Financial Transparency Act, 2013, to publish such statements, but the Trudeau government announced there would be no penalties for non-compliance, leading to a precipitous decline in reporting.

This is a shame, because First Nations, as they often insist, are governments, not private organizations. And like other governments, they should make their affairs visible to the public. Also, most of their income comes from Canadian taxpayers. Both band members and other Canadians have a right to know how much money they receive, how it’s being spent and whether it’s achieving its intended goals.

Author:

Tom Flanagan

Professor Emeritus of Political Science and Distinguished Fellow, School of Public Policy, University of Calgary

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Musk, Ramaswamy to lead Trump efforts to cut waste, fraud in federal government

Published on November 13, 2024

Todayville

From The Center Square

By Brett Rowland

During his campaign, Ramaswamy proposed cutting 75% of the federal workforce. Musk recently suggested that he could cut $2 trillion from the federal budget, or about one-third of total U.S. spending.

President-elect Donald Trump picked Tesla CEO Elon Musk and businessman Vivek Ramaswamy to lead a newly created Department of Government Efficiency.

The department’s acronym, DOGE, is a nod to Musk’s favorite cryptocurrency, dogecoin. Trump said the new group will pave the way for his administration to “dismantle government bureaucracy, slash excess regulation, cut wasteful expenditures and restructure federal agencies.”

Trump laid out lofty goals for the group in his announcement this week.

“It will become, potentially, ‘The Manhatten Project,’ of our time,” Trump’s announcement said. “Republican politicians have dreamed about the objectives of ‘DOGE’ for a very long time.”

It won’t be an official government agency, which will likely allow Musk and Ramaswamy to avoid public financial disclosures.

Trump said the change he’s looking for won’t come from within the existing federal government.

“To drive this kind of change, the Department of Government Efficiency will provide advice and guidance from outside the government, and will partner with the White House and Office of Management & Budget to drive large scale structural reform and create and entrepreneurial approach to government never seen before,” the announcement noted.

Trump said he looks forward to what Musk and Ramaswamy can accomplish.

“Importantly, we will drive out the massive waste and fraud which exists throughout our annual $6.5 trillion of government spending,” he said.

Trump also gave them a deadline: July 4, 2026.

“A smaller government, with more efficiency and less bureaucracy will be the perfect gift to America” on the 250th anniversary of the Declaration of Independence, according to the announcement.

Ramaswamy, who dropped out the race for the GOP nomination to endorse Trump in January, has previously proposed significant cuts. During his campaign, Ramaswamy proposed cutting 75% of the federal workforce.

Musk recently suggested that he could cut $2 trillion from the federal budget, or about one-third of total U.S. spending. He’s been tossing out ideas on X, previously Twitter before Musk bought the company and changed the name.

“The world is suffering slow strangulation by overregulation. Every year, the noose tightens a little more,” Musk wrote in a post on X on Wednesday. “We finally have a mandate to delete the mountain of choking regulations that do not serve the greater good.”

Musk also said he isn’t a threat to democracy, but a threat to bureaucracy.

DOGE already has an X account. It’s first post: “Working overtime to ensure your tax dollars will be spent wisely!”

Some budget experts have called Musk’s pledge to cut $2 trillion a pipe dream, noting that many of the problems DOGE wants to address have proven intractable.

Brian Riedl, a senior fellow at the Manhattan Institute think tank, called Musk’s proposal “a random number unattached to reality.”

Marc Goldwein, the senior vice president and senior policy director for the Committee for a Responsible Federal Budget, said it could be done with 10 aggressive policies, mostly focused on Medicare and Medicaid.

“The government can legitimately save trillions over a decade by reducing waste and improving efficiency – and I hope we do,” Goldwein wrote on X. “Achieving these savings requires major changes to how and how much we pay for health care.”

Medicare (annual cost of about $1 trillion) is a federal health insurance program for people 65 or older, and some people younger than 65 with certain disabilities or conditions. Medicaid (annual cost of about $558 billion) is a joint federal and state program that helps cover medical costs for some people with limited income and resources.

The Government Accountability Office, which serves as the research arm of Congress, estimated annual fraud losses cost taxpayers between $233 billion and $521 billion annually, in a report in April. The fraud estimate’s range represents 3% to 7% of average federal obligations. The Office of Management and Budget publicly questioned that estimate, calling it “not plausible.”

“OMB has significant concerns that this report will not further efforts to prevent and reduce fraud, but rather will create confusion and promote misleading generalizations that have no factual connection to specific federal programs,” Jason Miller, the deputy director for management at the Office of Management and Budget, wrote of OMB concerns in a three-page letter to officials with the Government Accountability Office.

On the campaign trail, Ramaswamy detailed his plan to reduce the federal workforce by 75% during an event at the America First Policy Institute in Washington in 2023.

Ramaswamy said he would shutter the FBI (about 35,000 employees); the Bureau of Alcohol, Tobacco, Firearms a nd Explosives (5,099 employees); the U.S. Department of Education (about 4,200 employees); the Nuclear Regulatory Commission (about 3,000 employees); and the Department of Agriculture’s Food and Nutrition Services (about 1,500 employees).

Under Ramaswamy’s campaign plan, some 15,000 FBI employees would be moved to other agencies such as the U.S. Marshals Service, U.S. Secret Service, Treasury’s Financial Crimes Enforcement Network, Drug Enforcement Administration, Defense Intelligence Agency, and Commerce’s Bureau of Industry and Security.

Some groups called the Department of Government Efficiency goals a stretch. Others had more pointed things to say.

Lisa Gilbert, co-president of Public Citizen, a progressive consumer advocacy organization founded by Ralph Nader, said the government agencies and regulations Ramaswamy proposed cutting are in place to protect people.

“The purpose of government regulations is to protect the American people,” she said in a statement. “We all depend on these regulations to protect our air, water, workers, children’s safety, and so much more. ‘Cutting red tape’ is shorthand for getting rid of the safeguards that protect us in order to benefit corporate interests.”