* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Sunday, October 5, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    Why Taylor Swift Name-Dropped Elizabeth Taylor in Her New Album – Yahoo

    Here’s Why Taylor Swift Dropped Elizabeth Taylor’s Name in Her New Album

    Al Roker Gives Olivia Dean an Unexpected ‘New Job’ on the ‘Today’ Show – Yahoo

    Al Roker Shocks Olivia Dean with an Exciting New Role on the ‘Today’ Show

    Books about the arts and some haunts for a Denton October – Denton Record-Chronicle

    Uncover Artistic Treasures and Spooky Adventures to Experience in Denton This October

    Taylor Swift Releases New Album The Life of a Showgirl : Listen and Read the Full Credits – Yahoo

    Taylor Swift Releases New Album The Life of a Showgirl : Listen and Read the Full Credits – Yahoo

    Toni Braxton Is Turning Her Biggest Hits Into Lifetime Movies – Yahoo

    Toni Braxton Is Turning Her Biggest Hits Into Lifetime Movies – Yahoo

  • 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
    What the Recent Price Surge Means for Figure Technology Solutions After SEC Settlement – Yahoo Finance

    What the Recent Price Surge Reveals About Figure Technology Solutions Following SEC Settlement

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    A Tech Expo Shows What China Can Make, but Not Who’ll Buy It All – The New York Times

    Inside China’s Tech Expo: Cutting-Edge Innovations Face Uncertain Demand

    Steampunk Metal Oval Technology Sense Sunglasses Personality Handmade Chain Multicolor Sunglasses UV400 – The San Joaquin Valley Sun

    Steampunk Metal Oval Sunglasses with Handmade Multicolor Chain – Bold UV400 Protection and Unique Style

    STELLA Automotive AI Appoints Fred Seidelman as Chief Technology Officer – Yahoo Finance

    STELLA Automotive AI Appoints Fred Seidelman as New Chief Technology Officer

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    Why Taylor Swift Name-Dropped Elizabeth Taylor in Her New Album – Yahoo

    Here’s Why Taylor Swift Dropped Elizabeth Taylor’s Name in Her New Album

    Al Roker Gives Olivia Dean an Unexpected ‘New Job’ on the ‘Today’ Show – Yahoo

    Al Roker Shocks Olivia Dean with an Exciting New Role on the ‘Today’ Show

    Books about the arts and some haunts for a Denton October – Denton Record-Chronicle

    Uncover Artistic Treasures and Spooky Adventures to Experience in Denton This October

    Taylor Swift Releases New Album The Life of a Showgirl : Listen and Read the Full Credits – Yahoo

    Taylor Swift Releases New Album The Life of a Showgirl : Listen and Read the Full Credits – Yahoo

    Toni Braxton Is Turning Her Biggest Hits Into Lifetime Movies – Yahoo

    Toni Braxton Is Turning Her Biggest Hits Into Lifetime Movies – Yahoo

  • 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
    What the Recent Price Surge Means for Figure Technology Solutions After SEC Settlement – Yahoo Finance

    What the Recent Price Surge Reveals About Figure Technology Solutions Following SEC Settlement

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    A Tech Expo Shows What China Can Make, but Not Who’ll Buy It All – The New York Times

    Inside China’s Tech Expo: Cutting-Edge Innovations Face Uncertain Demand

    Steampunk Metal Oval Technology Sense Sunglasses Personality Handmade Chain Multicolor Sunglasses UV400 – The San Joaquin Valley Sun

    Steampunk Metal Oval Sunglasses with Handmade Multicolor Chain – Bold UV400 Protection and Unique Style

    STELLA Automotive AI Appoints Fred Seidelman as Chief Technology Officer – Yahoo Finance

    STELLA Automotive AI Appoints Fred Seidelman as New Chief Technology Officer

    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

Is the James Webb Space Telescope really ‘breaking’ cosmology?

July 22, 2024
in Science
Is the James Webb Space Telescope really ‘breaking’ cosmology?
Share on FacebookShare on Twitter

An image showing many sparkling stars and galaxies

The James Webb Space Telescope deep field image showing some of the earliest and most distant galaxies ever seen.
(Image credit: NASA, ESA, CSA, and STScI)

Not long after the James Webb Space Telescope (JWST) began its science operations, astronomers announced that they had discovered galaxies in the early universe that were far too large, bright and full of stars for their age. While headlines around the world claimed that these galaxies were “breaking” our understanding of the Big Bang, the truth is much more nuanced — and much more interesting.

The Big Bang theory is our general picture of the history of the universe, starting in its deep past, when the cosmos was much smaller, hotter and denser than it is today. This model, initially developed in the early 20th century, has survived a battery of observational tests and is extremely good at explaining a variety of cosmological observations, including the redshifting of light from distant galaxies, the appearance of leftover radiation in the form of the cosmic microwave background, the abundances of light elements, and the evolution of galaxies and larger structures.

While the Big Bang theory can’t say for certain which galaxies will appear where, it can talk about probabilities. For example, cosmologists can say roughly how many small galaxies, how many medium galaxies and how many large galaxies should appear in a given volume at a certain age of the universe. But until JWST, we did not have direct observational access to the earliest stages of galactic evolution — something the telescope was explicitly designed to study.

In 2022, astronomers announced that they had found extremely distant galaxies that were surprisingly, weirdly large. They had measured the redshift of the galaxies to be over 16, implying that these galaxies existed just 200 million to 250 million years after the Big Bang. Yet they were gigantic and appeared to be fully formed, with spiral arms and everything.

Related: ‘The early universe is nothing like we expected’: James Webb telescope reveals ‘new understanding’ of how galaxies formed at cosmic dawn

These galaxies seemed far outside the expectations of the Big Bang theory; they were like finding teenagers in a kindergarten classroom. So what was going on?

Bending cosmology

Cue the brazen headlines proclaiming the death of the Big Bang theory. But those stories left out a crucial detail: Astronomers estimated the redshift of those galaxies through a technique known as photometry, which is incredibly uncertain. A full evaluation of the ability of those galaxies to “break” cosmology would have to wait for a more precise measurement of their redshift, and hence their age.

Get the world’s most fascinating discoveries delivered straight to your inbox.

When those more precise measurements finally came a few months later, those galaxies turned from record-shattering to just … normal galaxies. For example, one galaxy’s redshift was revised from over 16 to just 4.9, moving its age from 240 million years after the Big Bang to well over a billion years. That’s more than enough time for the normal Big Bang theory to explain their sizes and shapes.

But along with those less-exciting revisions came some new confirmed redshifts of other galaxies, including JADES-GS-z14-0, the current most distant known galaxy, with a redshift of 14.32. This galaxy was alive and well when the cosmos was just 290 million years old.

Astronomers fully expected galaxies to exist 290 million years after the Big Bang; that’s why they built JWST. And as galaxies go, JADES-GS-z14-0 is certainly a juvenile — it’s only 1,600 light-years across, compared with the Milky Way’s 100,000 light-years. But interestingly, the galaxy is rather bright and full of stars — not enough to outright break cosmology, but enough to open up some questions about the origins and development of the first galaxies to appear in the universe.

Building cosmology

It’s quite possible that the Big Bang theory is wrong; scientists must maintain the mental discipline to admit the possibility. But with such a wealth of evidence behind it, the Big Bang is unlikely to be unseated from a single observation. And it’s worth reiterating that JWST is doing exactly what we designed and built it to do: answer some major lingering questions about how the first stars and galaxies appeared.

It’s entirely possible that cosmologists will be able to explain the appearance of galaxies like JADES-GS-z14-0 within the framework of the Big Bang without having to make any major revisions. For example, large black holes may have appeared before these galaxies did, and their superpowered gravitational attraction may have triggered bright bursts of star formation. Or perhaps supernova feedback and other mechanisms caused the first galaxies to be richer with stars than present-day galaxies, making those early galaxies appear mighty despite their small size.

Or maybe our initial observations are biased toward these small-but-bright outliers and further campaigns will reveal larger populations of more mundane galaxies, thus reducing the tension with galaxy formation models.

And lastly, perhaps we need to add some new ingredient to the universe, like allowing for dark energy to evolve with time, to produce these kinds of galaxies at such early times.

This is exciting enough on its own, without the need to upend the Big Bang as we know it. There are more than enough mysteries and hidden corners within the universe to keep astronomers up at night wondering about the possibilities — and up in the morning to keep working on how to solve them.

Originally posted on Space.com.

Paul M. Sutter is a research professor in astrophysics at  SUNY Stony Brook University and the Flatiron Institute in New York City. He regularly appears on TV and podcasts, including  “Ask a Spaceman.” He is the author of two books, “Your Place in the Universe” and “How to Die in Space,” and is a regular contributor to Space.com, Live Science, and more. Paul received his PhD in Physics from the University of Illinois at Urbana-Champaign in 2011, and spent three years at the Paris Institute of Astrophysics, followed by a research fellowship in Trieste, Italy. 

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Live Science – https://www.livescience.com/space/cosmology/is-the-james-webb-space-telescope-really-breaking-cosmology

Tags: JamesscienceSpace
Previous Post

Space photo of the week: 55 years ago, the ‘world’s loneliest man’ snapped this iconic Apollo 11 image

Next Post

Why did Homo sapiens outlast all other human species?

Splurging? In This Economy? Here’s How to Do It Right. – The New York Times

Splurging? In This Economy? Here’s How to Do It Right. – The New York Times

October 5, 2025
“Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

“Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

October 5, 2025
How the government shutdown is hitting the health care system – and what the battle over ACA subsidies means – The Conversation

How the Government Shutdown Is Disrupting Health Care and What the Battle Over ACA Subsidies Means for You

October 5, 2025
Politics | Shutdown Showdown and More Court Battles – “The Sunday Political Brunch” – GoLocalProv

Shutdown Showdown and Intense Court Battles: Inside This Week’s Political Drama

October 5, 2025
First Record of Mating Involving a Melanistic Jaguar (Panthera onca) in the Wild: Novel Behavioural Insights Into Colour Morphs and Captive‐Wild Comparisons – Luypaert – 2025 – Ecology and Evolution – Wiley Online Library

First Record of Mating Involving a Melanistic Jaguar (Panthera onca) in the Wild: Novel Behavioural Insights Into Colour Morphs and Captive‐Wild Comparisons – Luypaert – 2025 – Ecology and Evolution – Wiley Online Library

October 5, 2025
Multi-generational vulture nests hold 700 years of human artifacts – Popular Science

Multi-generational vulture nests hold 700 years of human artifacts – Popular Science

October 5, 2025
Chinese tech company develops creepy ultra-lifelike robot face — watch it blink, twitch and nod – Live Science

Chinese tech company develops creepy ultra-lifelike robot face — watch it blink, twitch and nod – Live Science

October 5, 2025
FSE Lifestyle Services (HKG:331) Has Announced That Its Dividend Will Be Reduced To HK$0.185 – simplywall.st

FSE Lifestyle Services (HKG:331) Has Announced That Its Dividend Will Be Reduced To HK$0.185 – simplywall.st

October 5, 2025
Irrigation technology adapts to water restrictions – Farm Progress

Innovative Irrigation Technologies Transform Farming Amid Water Restrictions

October 5, 2025
Allende, Alba and Messi help Miami beat Revolution 4-1 – Yahoo Sports

Allende, Alba, and Messi Ignite Miami’s Stunning 4-1 Triumph Over Revolution

October 5, 2025

Categories

Archives

October 2025
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
2728293031  
« Sep    
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 (852)
  • Economy (873)
  • Entertainment (21,747)
  • General (17,423)
  • Health (9,915)
  • Lifestyle (885)
  • News (22,149)
  • People (874)
  • Politics (884)
  • Science (16,083)
  • Sports (21,373)
  • Technology (15,854)
  • World (855)

Recent News

Splurging? In This Economy? Here’s How to Do It Right. – The New York Times

Splurging? In This Economy? Here’s How to Do It Right. – The New York Times

October 5, 2025
“Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

“Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

October 5, 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