* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Monday, June 30, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Susquehanna Raises Penn Entertainment Inc. (PENN) Price Target. – Yahoo Finance

    Susquehanna Raises Price Target for Penn Entertainment Inc. (PENN)

    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    New center coming to Mizzou will focus on energy research and technology – Columbia Missourian

    Mizzou Launches Innovative New Center Dedicated to Energy Research and Technology

    Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps? – The Guardian

    Can Technology Like Space Mirrors and Underwater Curtains Buy Us Time to Save the Arctic Ice Caps?

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Emerging Memory and Storage Technology Market Analysis Report 2025-2034 | AI and HPC Boom Fuels Surging Demand for Fast, Low-Power Memory Devices – Yahoo Finance

    How AI and HPC Are Driving Explosive Growth in Fast, Low-Power Memory Technologies Through 2034

    Ostin Technology (OST): Volatility’s Warning or Contrarian Opportunity? – AInvest

    Ostin Technology (OST): Navigating Market Volatility – Red Flag or Hidden Opportunity?

    St. Francis Medical Center brings advanced robotic surgery technology to Northeast Louisiana – KNOE

    St. Francis Medical Center brings advanced robotic surgery technology to Northeast Louisiana – KNOE

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Susquehanna Raises Penn Entertainment Inc. (PENN) Price Target. – Yahoo Finance

    Susquehanna Raises Price Target for Penn Entertainment Inc. (PENN)

    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    New center coming to Mizzou will focus on energy research and technology – Columbia Missourian

    Mizzou Launches Innovative New Center Dedicated to Energy Research and Technology

    Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps? – The Guardian

    Can Technology Like Space Mirrors and Underwater Curtains Buy Us Time to Save the Arctic Ice Caps?

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Emerging Memory and Storage Technology Market Analysis Report 2025-2034 | AI and HPC Boom Fuels Surging Demand for Fast, Low-Power Memory Devices – Yahoo Finance

    How AI and HPC Are Driving Explosive Growth in Fast, Low-Power Memory Technologies Through 2034

    Ostin Technology (OST): Volatility’s Warning or Contrarian Opportunity? – AInvest

    Ostin Technology (OST): Navigating Market Volatility – Red Flag or Hidden Opportunity?

    St. Francis Medical Center brings advanced robotic surgery technology to Northeast Louisiana – KNOE

    St. Francis Medical Center brings advanced robotic surgery technology to Northeast Louisiana – KNOE

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

New data, same appearance for M87*

January 28, 2024
in Science
New data, same appearance for M87*
Share on FacebookShare on Twitter

New Data, Same Great Appearance for M87*

The Event Horizon Telescope Collaboration has released new images of M87* from observations taken in April 2018, one year after the first observations in April 2017. The new observations in 2018, which feature the first participation of the Greenland Telescope, reveal a familiar, bright ring of emission of the same size as we found in 2017. This bright ring surrounds a dark central shadow, and the brightest part of the ring in 2018 has shifted by about 30º relative from 2017 to now lie in the 5 o’clock position. Credit: EHT Collaboration

Nearly five years ago, a globe-spanning team of astronomers gave the world its first-ever glimpse of a black hole. Now the team has validated both their original findings and our understanding of black holes with a new image of the supermassive black hole M87*. This supermassive black hole, 6.5 billion times the mass of our sun, resides at the center of the Messier 87 (M87) galaxy in the Virgo galaxy cluster, located 55 million light-years from Earth.

The new image, like the old one, was captured by the Event Horizon Telescope (EHT), an array of radio telescopes stretching across the planet. These new data, however, were gathered a year later, in 2018, and benefited from enhancements in the telescope array, notably with the inclusion of a telescope in Greenland.

EHT’s original image of M87* was important not just because it represented the first time humans had imaged a black hole, but also because the object looked the way it was supposed to look. Notably, the image showed what is known as a black-hole shadow—a dark region at the center of a glowing disk of hot matter circling the black hole. A black-hole shadow isn’t a shadow in the same sense as the one you cast when you walk outside on a sunny day. Instead, the dark region is created by the black hole’s immense gravitational field, which is so strong that light cannot escape it. Since no light leaves a black hole, it appears dark.

Additionally, that strong gravity bends light that passes near the black hole without falling into it, effectively acting like a lens. This is known as gravitational lensing, and it creates a ring of light that can be seen regardless of the angle from which the black hole is viewed. These effects were both predicted from Albert Einstein’s theory of general relativity. Because M87*’s image shows these effects, it is strong evidence that general relativity and our understanding of the physics of black holes is correct.

This new M87* image was produced with key contributions from an imaging team at Caltech, including Professor Katherine (Katie) L. Bouman, assistant professor of computing and mathematical sciences, electrical engineering, and astronomy; former Caltech Ph.D. student Nitika Yadlapalli Yurk, Ph.D.; and current Caltech postdoctoral research associate in computing and mathematical sciences Aviad Levis.

Bouman is a coordinator of the EHT Imaging Working Group and was a postdoctoral fellow at the Harvard Smithsonian Center for Astrophysics and co-lead of the EHT imaging team when the original image was published in 2019. In that role, she helped develop the algorithms that assembled the trove of data collected by the EHT’s multiple radio telescopes into a single, cohesive image. Since joining the Caltech faculty, Bouman, who is also a Rosenberg Scholar and Heritage Medical Research Institute Investigator, has continued her work with EHT. She also co-led the imaging of the Milky Way’s supermassive black hole published in 2022.

Yurk joined the EHT Collaboration in 2020 and played an active role in the imaging team for the latest M87* image. Her main contributions included developing synthetic datasets to be used in the training and validation of the imaging algorithms. Yurk also wrote software that was used in the exploration of image candidates. She was recently recognized by the EHT for her efforts with a Ph.D. Thesis Award for the advances she brought to the imaging and validation of the most recent M87* image. She is currently a NASA Postdoctoral Program fellow at JPL, which Caltech manages for NASA.

Imaging an object like M87* with the EHT is very different than imaging a planet like Saturn with a conventional telescope. Instead of seeing light, the EHT observes the radio waves emitted by objects and must computationally combine the information to form a picture.

“The raw data that comes out of these telescopes are basically just voltage values,” Yurk says. “I like to describe radio telescopes as the world’s most sensitive volt meters, and they collect voltages really accurately from different parts of the sky.”

Turning those voltage values into an image is tricky, Bouman says, because the information the researchers are working with is incomplete, and there is nothing to compare the image against since no one has seen M87* with their own eyes.

“We don’t want to plug in our expectations of what the black hole should look like when we’re computationally forming the image,” Bouman says. “Otherwise, it might lead us to an image that we expect rather than one that captures reality.”

To avoid that problem, the researchers test their image processing algorithms with what is known as synthetic data, a suite of simulated images with simple geometric shapes. Those data are run through the algorithms to produce an image. If the output image is true to the input image, they know the algorithm is working correctly and would be able to accurately see surprising structures around the black hole.

Bouman says that process, which was co-led by Yurk, involved exploring hundreds of thousands of parameters to gauge the effectiveness of the algorithms in reconstructing different image structures. The team found that with the addition of the Greenland telescope to the EHT, the methods more robustly recovered features in the images.

The process produced an image of M87* that is only slightly different than the first. The most obvious difference is that the brightest portion of the glowing ring surrounding M87* has shifted about 30 degrees counterclockwise. According to the EHT, that movement is likely the result of the turbulent flow of matter around a black hole. Importantly, the ring has remained the same size, which was also predicted by general relativity.

Bouman adds that the team’s ability to produce another image of M87* with new data that agrees so closely with the previous image is exciting.

“I think that people are going to ask, ‘Why is this important? You already showed a picture of M87*.’ Other groups have reproduced the M87* picture with data that were taken in 2017. But it’s a totally different thing to have a new dataset taken a different year and to come to the same conclusions. Reproducibility with independent data is a big deal, too.”

Citation:
New data, same appearance for M87* (2024, January 27)
retrieved 27 January 2024
from https://phys.org/news/2024-01-m87.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-01-m87.html

Tags: Appearancescience
Previous Post

Study predicts best times for Curiosity to sample Mars’ methane

Next Post

Small ‘fortress’ parks aren’t the answer for Africa’s savannah elephants. They need room to roam

Immune Health Supplements Market Size to Reach USD 56.23 – GlobeNewswire

Immune Health Supplements Market Size to Reach USD 56.23 – GlobeNewswire

June 30, 2025
‘I don’t believe in losing’: GOP lawmaker responds to concerns about passing bill | CNN Politics – CNN

‘I don’t believe in losing’: GOP lawmaker responds to concerns about passing bill | CNN Politics – CNN

June 30, 2025
New center coming to Mizzou will focus on energy research and technology – Columbia Missourian

Mizzou Launches Innovative New Center Dedicated to Energy Research and Technology

June 30, 2025
Atlanta Dream Dealt Concerning Loss During Liberty Game – Yahoo Sports

Atlanta Dream Faces Crushing Defeat in Thrilling Liberty Clash

June 30, 2025
More than 1,800 National Science Foundation workers abruptly kicked out of agency headquarters – Space

Over 1,800 National Science Foundation Employees Suddenly Evicted from Agency Headquarters

June 30, 2025
Scientists Retrace 30,000-Year-Old Sea Voyage, in a Hollowed-Out Log – The New York Times

Scientists Successfully Recreate Epic 30,000-Year-Old Sea Voyage in a Hollowed-Out Log

June 30, 2025
Tom Brady Ditches Sneakers Lifestyle For Jeff Bezos & Lauren Sánchez’s Wedding – Yahoo

Tom Brady Swaps Sneakers Lifestyle for Glamorous Jeff Bezos and Lauren Sánchez Wedding Celebration

June 30, 2025
Chivu Confirms France Star Fit For Inter Milan Vs Fluminense Club World Cup Clash – Yahoo Sports

Chivu Confirms France Star Ready for Inter Milan’s Club World Cup Showdown Against Fluminense

June 30, 2025
Trump’s tariffs damage the US economy more if they drive investors away from American assets – Peterson Institute for International Economics

How Trump’s Tariffs Could Backfire by Driving Investors Away from American Assets

June 30, 2025
Surprising New Study Links Daytime Napping to Hidden Health Risks – Prevention

Surprising New Research Uncovers Hidden Health Risks of Daytime Napping

June 30, 2025

Categories

Archives

June 2025
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
30 
« May    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (700)
  • Economy (724)
  • Entertainment (21,613)
  • General (15,632)
  • Health (9,764)
  • Lifestyle (729)
  • News (22,149)
  • People (725)
  • Politics (731)
  • Science (15,941)
  • Sports (21,221)
  • Technology (15,709)
  • World (704)

Recent News

Immune Health Supplements Market Size to Reach USD 56.23 – GlobeNewswire

Immune Health Supplements Market Size to Reach USD 56.23 – GlobeNewswire

June 30, 2025
‘I don’t believe in losing’: GOP lawmaker responds to concerns about passing bill | CNN Politics – CNN

‘I don’t believe in losing’: GOP lawmaker responds to concerns about passing bill | CNN Politics – CNN

June 30, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version