Al Mayadeen English

  • Ar
  • Es
  • x
Al Mayadeen English

Slogan

  • News
    • Politics
    • Economy
    • Sports
    • Arts&Culture
    • Health
    • Miscellaneous
    • Technology
    • Environment
  • Articles
    • Opinion
    • Analysis
    • Blog
    • Features
  • Videos
    • NewsFeed
    • Video Features
    • Explainers
    • TV
    • Digital Series
  • Infographs
  • In Pictures
  • • LIVE
News
  • Politics
  • Economy
  • Sports
  • Arts&Culture
  • Health
  • Miscellaneous
  • Technology
  • Environment
Articles
  • Opinion
  • Analysis
  • Blog
  • Features
Videos
  • NewsFeed
  • Video Features
  • Explainers
  • TV
  • Digital Series
Infographs
In Pictures
  • Africa
  • Asia
  • Asia-Pacific
  • Europe
  • Latin America
  • MENA
  • Palestine
  • US & Canada
BREAKING
Israeli occupation forces issue a new bombing threat against civilian buildings in the Southern Lebanese towns of Borj Qalaouiye and Chehabiyeh.
Sources to Al Mayadeen: Extending the snapback mechanism deadline will test how independent Europeans truly are from the US.
Sources to Al Mayadeen: Activating the snapback mechanism will nullify the Cairo Agreement, shut the door on cooperation between the IAEA and Tehran, and bar inspections.
Sources to Al Mayadeen: The diplomatic window remains open, but signs of activating the snapback sanctions mechanism on Iran are increasing.
Sources to Al Mayadeen: Although the Cairo Agreement meets an important part of European demands, they have begun speaking of new conditions in recent communications.
Sources to Al Mayadeen: European countries show no independence in their stance toward Iran during the talks.
Israeli occupation forces issued bombing threats to bomb civilian buildings in Southern Lebanon.
Israeli media: Person behind shooting operation at Allenby Crossing is a Jordanian Army soldier.
Israeli media citing Emergency Services: Both wounded in Allenby shooting operation now dead.
Israeli media: One soldier wounded at Allenby crossing now confirmed killed.

Galactical explosion 10 times brighter than any previously observed

  • By Al Mayadeen English
  • Source: News websites
  • 12 May 2023 15:52
3 Min Read

Observations revealed that the cosmic explosions that were captured are the largest ever witnessed by astronomers.

  • x
  • This image provided by NASA shows the star Wolf-Rayet 124, center, captured by the James Webb Space Telescope in June 2022. (AP)
    This image provided by NASA shows the star Wolf-Rayet 124, center, captured by the James Webb Space Telescope in June 2022. (AP)

Scientists could have captured the largest cosmic explosion to have ever been witnessed, whose flare-up could be traced to 8 billion years away.

Initially, astronomers captured what they believed was an unremarkable flicker in the sky, however, deeper observations led them to believe that the event was the largest explosion they ever witnessed, which was likely to have been the result of a supermassive black hole swallowing up a gigantic cloud of gas.

The recorded flare-up proved 10 times brighter than any previously known supernova and has lasted more than three years, making this the "most energetic explosion on record" as reported by The Guardian.

Dr. Philip Wiseman, an astronomer at Southampton University who led the observations, said the explosion “went unnoticed for a year as it gradually got brighter,” noting that only subsequent observations allowed scientists to fully comprehend the event's almost unfathomable size.

“We’ve estimated it’s a fireball 100 times the size of the solar system, with a brightness about 2tn times the sun’s,” Wiseman explained adding that “in three years, this event has released about 100 times as much energy as the sun will in its 10bn-year lifetime.”

Related News

Astronomers may have found the most massive black hole in universe

Astronomers discover universe’s brightest object

Moreover, scientists highlighted that the explosion, which became known as AT2021lwx, has not been the brightest phenomenon that has been witnessed historically. While GRB 221009A, a gamma-ray burst that was spotted earlier last year, was brighter, even though it only lasted for minutes. The energy release of the newly discovered explosion lasted for years and remains ongoing.

In that regard, the event did not grasp astronomers' attention, but the calculations that happened during the observation of the event revealed the extent of the importance of the incredibly rare event which shocked scientists.
 
Wiseman exclaimed, “When I told our team the numbers they were all just so shocked."

"Once we understood how extremely bright it was, we had to come up with a way to explain it.”

It was outside the plausible range for a supernova (exploding star) and so astronomers turned to the other common scenario that cause bright flashes in the night sky – a so-called tidal disruption event. These events typically involve a star straying too close to a black hole and being shredded, with the part being swallowed and the rest being stretched out in a swirling disc. 
 
"Simulations, however, indicated that a star with up to 15 times the mass of the sun would have been needed to explain AT2021lwx. We believe a far larger cloud of gas is more plausible since it is quite uncommon to see such a massive star," according to Wiseman.

Supermassive black holes are normally surrounded by a wide halo of gas and dust, and as such, scientists suggested that part of this material may have been disrupted, resulting in a collision of galaxies that could have in turn been propelled inwards. The material would have produced enormous amounts of heat and light as it spiraled towards the event horizon, the black hole's circular outer border, lighting a section of the ring and heating it to 12–13,000°C.

Read more: NASA discovers second Earth-sized planet in 'habitable zone'

  • Astronomy
  • Supernova
  • Black Hole

Most Read

Why is Choose Love using a firm with British and US intelligence connections to run a pro-Palestine musical event? (Al Mayadeen English; Illustrated by Batoul Chamas)

Together for Palestine: Troubling questions about the organisers of this huge event

  • Opinion
  • 17 Sep 2025
Uprising against Volker Turk at the Human Rights Council over Gaza.

Uprising against Volker Turk at the Human Rights Council over Gaza

  • Politics
  • 12 Sep 2025
A screengrab from the ad played on Fox News. (X Screengrab)

Fox airs ad warning Trump not to let Netanyahu 'play' him on Gaza

  • US & Canada
  • 11 Sep 2025
Lapid: Egypt’s Arab Force plan a 'severe blow' to normalization

Lapid: Egypt’s Arab Force plan a 'severe blow' to normalization

  • Palestine
  • 14 Sep 2025

Coverage

All
The Ummah's Martyrs

Read Next

All
A Hezbollah supporter who lost his sight in a pager attack carried out by "Israel" on Sept. 17, 2024, covers his eyes with a red headband inscribed with the name "Hussein" during Ashoura, July 6, 2025 (AP)
Politics

'We Have Recovered': Lebanon marks 1st anniversary of Pager Attack

The Arab neighborhood of El Za'im, on the outskirts of east Occupied Al-Quds in the West Bank, near where Israeli government says housing units will be built as part of the E1 settlement project, Thursday, August 21, 2025. (AP Photo/Ohad Zwigenberg)
Palestine

'Israel’s' deliberate policies drive West Bank economy toward collapse

Ben & Jerry's ice cream shop, Wednesday, Feb. 26, 2025, in Cambridge, Mass. (AP Photo/Charles Krupa)
Politics

Ben & Jerry’s co-founder resigns over parent company curbing activism

Trump’s approval rating falls to new low in second term: Poll
US & Canada

Trump’s approval rating falls to new low in second term: Poll

Al Mayadeen English

Al Mayadeen is an Arab Independent Media Satellite Channel.

All Rights Reserved

  • x
  • Privacy Policy
  • About Us
  • Contact Us
  • Authors
Android
iOS