The researchers described it as an "extremely exciting" discovery that opens up "tantalizing" possibilities for detecting further black holes.
The team, led by Durham University in the United Kingdom, used a technique known as gravitational lensing -- whereby a nearby galaxy is used as a giant magnifying glass to bend the light from a more distant object. This enabled them to closely examine how light is bent by a black hole inside a galaxy hundreds of millions of light years from Earth.
Supercomputer simulations and images captured by the Hubble Space Telescope were also used to confirm the size of the black hole.
This is the first black hole found using gravitational lensing, with the team simulating light travelling through the universe hundreds of thousands of times, according to a news release from the Royal Astronomical Society.
"This particular black hole, which is roughly 30 billion times the mass of our Sun, is one of the biggest ever detected and on the upper limit of how large we believe black holes can theoretically become, so it is an extremely exciting discovery," lead study author James Nightingale, an observational cosmologist from the Department of Physics at Durham University, said.
"Most of the biggest black holes that we know about are in an active state, where matter pulled in close to the black hole heats up and releases energy in the form of light, X-rays, and other radiation," Nightingale added.
"However, gravitational lensing makes it possible to study inactive black holes, something not currently possible in distant galaxies. This approach could let us detect many more black holes beyond our local universe and reveal how these exotic objects evolved further back in cosmic time."
Researchers believe the finding is significant as it "opens up the tantalising possibility that astronomers can discover far more inactive and ultramassive black holes than previously thought" and "investigate how they grew so large," according to the news release.
The story of this particular discovery started back in 2004 when fellow Durham University astronomer, Alastair Edge, a research fellow, noticed a giant arc of a gravitational lens when reviewing images of a galaxy survey, according to the news release.
The team has now revisited the discovery and explored it further with the help of NASA's Hubble telescope and the DiRAC COSMA8 supercomputer.
Ultramassive black holes are the most massive objects in the universe and a rare find for astronomers.
Their origins are unclear, with some believing they were formed from the merging of galaxies billions of years ago.
Each time a galaxy merges with another one, stars are lost and a black hole gains mass -- which accounts for the incredibly high mass of some black holes.
NDP Leader Jagmeet Singh is pushing for special rapporteur David Johnston to 'step aside' from his role examining the issue of foreign interference before he embarks on public hearings.
New Democrat MP Jenny Kwan said Monday that Canada's spy agency has confirmed her long-held belief she is being targeted by the Chinese government, as the prime minister granted the NDP's wish to allow more party members to review top-secret intelligence.
William Karlsson, William Carrier and Jonathan Marchessault are finally getting another chance in the Stanley Cup Final, after the first one that came so quick for the Vegas Golden Knights.
Eastern Conference finals Most Valuable Player Jimmy Butler scored 28 points, and Caleb Martin had 26 points and 10 rebounds to help the eighth-seeded Miami Heat beat the Celtics 103-84 in Game 7 on Monday night and advance to the NBA Finals for the second time in four seasons.
Canadian political leaders and parliamentarians are denouncing a new law passed in Uganda that imposes harsh penalties, including the death penalty, for certain cases involving homosexuality.
There's a heightened risk of wildfires across the country during what has been one of the earliest fire seasons on record. From British Columbia to Nova Scotia, here's where the risk is highest.
New research from Penn State University found certain factors can contribute to reducing what’s known as the 'urban heat island' effect, and that climate knowledge can contribute to better city planning and design.
A former Ontario cabinet minister is suing the Canadian Security Intelligence Service and unidentified employees who he alleges leaked classified information with the intent of harming his reputation.
A Quebec driver who caused the death of another motorist when he swerved his truck to avoid hitting a family of ducks on the road has been sentenced to eight months in jail and a three-year driving ban.
The body of a Winnipeg boy who fell into Sturgeon Falls on Saturday has been found following a desperate underwater search that lasted more than a day.
Nine people were injured Monday evening when gunfire erupted along a beach boardwalk in Hollywood, Florida, sending people frantically running for cover along the crowded beach on Memorial Day.
Bangladesh should not bear the burden of more than 1 million Rohingya refugees alone while UN agencies are facing challenges to feed them, a United Nations official said Monday.
The NATO-led KFOR peacekeeping force on Monday said that 25 of its troops were injured in the clashes with ethnic Serbs in northern Kosovo who were trying to take over the offices of one of the municipalities where ethnic Albanian mayors took up their posts last week.
Police fired tear gas and demonstrators burned cars Monday near the home of Senegal's main opposition leader, as tensions rise in the capital days before a court verdict is expected on charges against the politician.
Malaysia's maritime agency said Monday it found a cannon shell believed to be from World War II on a Chinese-registered vessel and was investigating if the barge carrier was involved in the looting of two British warship wrecks in the South China Sea.
U.S. President Joe Biden lauded the sacrifice of generations of U.S. troops who died fighting for their country as he marked Memorial Day with the traditional wreath-laying ceremony at Arlington National Cemetery.
NDP Leader Jagmeet Singh is pushing for special rapporteur David Johnston to 'step aside' from his role examining the issue of foreign interference before he embarks on public hearings.
Canadian Heritage Minister Pablo Rodriguez said Monday he is starting to review the mandate for CBC and its French-language service Radio-Canada, including ways the government can bolster funding to the public broadcaster so it is less reliant on advertising dollars.
Public Services and Procurement Minister Helena Jaczek says the Liberal government expects to have a plan for the future of 24 Sussex Drive by the fall.
Three national health organizations want Canada's premiers to push for initiatives to reduce smoking during settlement negotiations with major tobacco companies, years after provinces sued to recoup health-care costs.
Artificial intelligence means everyone can now be a computer programmer as all they need to do is speak to the computer, Nvidia CEO Jensen Huang said on Monday, hailing the end of the 'digital divide.'
North Korea on Monday notified neighbouring Japan that it plans to launch a satellite in coming days, which may be an attempt to put Pyongyang's first military reconnaissance satellite into orbit.
China plans to land astronauts on the moon before 2030, in what would be another advance in what's increasingly seen as a new space race pitting the Asian autocracy against the United States and its democratic allies.
Quebec actor Michel Cote, who captivated audiences with his roles in the theatre piece 'Broue' and films such as 'Cruising Bar' and C.R.A.Z.Y.,' has died at 72.
George Maharis, a stage-trained actor with rough-hewn good looks who became an icon to American youth in the 1960s as he cruised the country in a Corvette convertible in the hit television series 'Route 66,' has died.
Turkiye's lira hit fresh record lows against the dollar on Monday, though stocks rallied, after President Tayyip Erdogan secured victory in Sunday's presidential election, extending his increasingly authoritarian rule into a third decade.
Canada's main stock index ticked upwards Monday, with broad-based gains led by battery metals and energy stock as U.S. markets were closed for a long weekend south of the border.
The reviews are starting to come in as details emerge about the debt ceiling agreement reached by President Joe Biden and House Speaker Kevin McCarthy.
Animated movies are often a child’s first exposure to media and film. And the representation of people of color in media influences how they feel about race as they mature, a study by the non-profit Common Sense has found.
From actions in their local communities to mass demonstrations, here's how Canadians from all walks of life are inspiring others to take part in helping the environment.
Authors discuss their new book, 'Sorry, Sorry, Sorry: The Case for Good Apologies,' which aims to demystify the process of delivering honest apologies.
William Karlsson, William Carrier and Jonathan Marchessault are finally getting another chance in the Stanley Cup Final, after the first one that came so quick for the Vegas Golden Knights.
Eastern Conference finals Most Valuable Player Jimmy Butler scored 28 points, and Caleb Martin had 26 points and 10 rebounds to help the eighth-seeded Miami Heat beat the Celtics 103-84 in Game 7 on Monday night and advance to the NBA Finals for the second time in four seasons.
The Philadelphia 76ers went all-in with their NBA championship pursuit on Monday, selecting veteran Nick Nurse as their new coach to try to win the franchise's first title since 1983.
Fernando Alonso has five podiums in six races in a remarkable season for Aston Martin, yet still feels he's no closer to catching Red Bull's Max Verstappen. The two-time Formula One champions now head to a race with special significance for both of them.
Formula One champion Max Verstappen's lights-to-flag victory at the Monaco Grand gave the Red Bull driver his fourth victory of the season and a record 39th overall for the team as he extended his championship lead to 39 points over teammate Sergio Perez on Sunday.
A Tennessee company is refusing demands from U.S. regulators to recall millions of vehicles due to airbag inflators that can explode and shoot shrapnel into drivers. While cases are rare, there has been at least one death in Canada, where officials lack the authority to demand a similarly sweeping recall.
An artist's impression of a black hole in the Milky Way galaxy. (Source: ESA / Hubble / Digitized Sky Survey via CNN)
