---
title: "James Webb Demolishes Hubble’s Record of Fitting the Most Galaxies in a Single Image"
description: "A new James Webb Space Telescope survey of the universe has already surpassed Hubble's most comprehensive one to date, and it's only in its first stage."
date: "2023-03-13"
modified: "2023-03-13"
authors:
  - name: "Frank Landymore"
    job_title: "Contributing Writer"
    link: "https://futurism.com/authors/flandymore"
url: "https://futurism.com/the-byte/james-web-demolishes-record-most-galaxies"
categories:
  - "James Webb Space Telescope"
  - "NASA"
  - "Space"
tags:
  - "cosmos-web"
  - "galaxies"
  - "james webb space telescope"
  - "the digest"
---

# James Webb Demolishes Hubble’s Record of Fitting the Most Galaxies in a Single Image

![A new James Webb Space Telescope survey of the universe has already surpassed Hubble's most comprehensive one to date, and it's only in its first stage.](<https://futurism.com/wp-content/uploads/2023/03/james-web-demolishes-record-most-galaxies2.jpg>)
*\<em\>Image: NASA/Futurism\</em\>*

## Galactic Triumph

The [Hubble Ultra Deep Field](<https://svs.gsfc.nasa.gov/30946>), conducted using NASA's Hubble Space Telescope, was once considered the zenith of astronomical surveys, capturing light from some 10,000 galaxies in the deepest reaches of the cosmos — all in a single image.

But as you may be very familiar with at this point, the James Webb Space Telescope has proven to be so advanced, it's making the Hubble's most Herculean efforts look almost trivial.

Now, astronomers are sharing some of the first images from James Webb's largest survey to date: the COSMOS-Web, set to eclipse the scope of the Hubble Ultra Deep Field with a whopping 25,000 galaxies in just its first stage.

"It's one of the largest JWST images taken so far," said Caitlin Casey, co-principal investigator of the project and an astronomer at the University of Texas at Austin, in a [press release](<https://cns.utexas.edu/news/research/first-images-jwsts-largest-general-observer-program>). "And yet it's just four percent of the data we will get for the full survey."

"When it is finished, this deep field will be astoundingly large and overwhelmingly beautiful."

Already observable in the first image are a host of exotic galaxies: spiral galaxies, merger galaxies, the gravity of galaxies creating cosmic lenses, magnifying older galaxies even further behind them.

https://twitter.com/TexasScience/status/1633865594968604685

## Deep Impact

Like other deep field surveys preceding it, the COSMOS-Web focuses only on a tiny sliver of the sky — just 0.6 square degrees, or about the size of three full moons [according to NASA](<https://www.nasa.gov/feature/goddard/2021/mapping-the-universes-earliest-structures-with-cosmos-webb>) — using the telescope's Near-Infrared Camera. Its Mid-Infrared Instrument scans an additional 0.2 square degrees.

In doing so, scientists hope to deepen our understanding of the Reionization Era between 400,000 and one billion years after the Big Bang, a time during which stars, galaxies, and other structures emerged.

Of particular interest are these primeval galaxies, and how [dark matter](<https://futurism.com/scientists-detected-oldest-dark-matter>), a hypothetical but unobservable substance thought to be holding our galaxies together, evolved along with them.

And, to reiterate, this is merely the first stage of the survey. When it wraps up, the over 200 scientists collaborating from across the globe will have surveyed up to one million galaxies over the course of some 255 hours of observations. That's the goal, anyhow.

It's ambitious, but the scientists are undeniably off to a stellar start. According to Santosh Harish, an astrophysicist at the Rochester Institute of Technology, the James Webb is so effortlessly detailed that "sources are literally popping out in every small patch of the observed sky."

"With these first observations," he said in the release, "we have just barely scratched the surface of what is to come with the completion of this program, next year."

**More on space:** *[Hubble May Have Spotted a Supermassive Black Hole Breaking Free From Its Galaxy](<https://futurism.com/rogue-supermassive-black-hole-broke-free>)*

## Author
At Futurism, my work has often centered on bringing a sense of clarity and insight to complex topics ranging from the regulation of emerging technologies to the esoteric ideologies of Silicon Valley executives, while striving not to lose the poetic sense of awe inspired by often-obscure fields like astrophysics and quantum computing. I broke the story of CNET using AI to produce articles that turned out to be riddled with factual errors and plagiarism — a dam-breaking inflection point, as I've reported, that's inspired copycats and endless discourse while beguiling stakeholders ranging from tech giants to purveyors of spam around the web. My work at Futurism has been cited by publications including CBS News, the Los Angeles Times, Vice, Gizmodo, Engadget, the Verge, and Vanity Fair. I grew up in locales ranging from India to China, and now live in the exotic suburbs of Virginia. In my free time, I'm an avid reader of weird sci-fi literature, an aficionado of East Asian cinema, and, regrettably, a relapsed gamer. Allegedly, I’m working on a debut novel, currently untitled.

### Author social links  
[Bluesky](<https://bsky.app/profile/f-w-l.bsky.social>)