
Every dot in this Webb telescope picture is a galaxy. Can you count them?
The James Webb Space Telescope continues to marvel scientists and ordinary citizens alike as it reveals the intricate design of the universe and unravels never-before-seen cosmic phenomena.Its latest image shows thousands of galaxies packed together in clusters.The European Space Agency (ESA) said that these galaxies glow with white-gold light. "We see this galaxy group as it appeared when the Universe was 6.5 billion years old, a little less than half the Universe's current age," ESA added.
n area of deep space with thousands of galaxies in various shapes and sizes on a black background. (Photo: ESA)
advertisement
The patch of the sky scanned by the Webb Telescope containing thousands of these galaxies is called the COSMOS-Web field, where Cosmos stands for Cosmic Evolution Survey that has been done by a group of telescopes including the Hubble and the XMM-Newton space observatory.The survey aims to understand how massive structures like galaxy clusters came to be. More than half of the galaxies in our Universe belong to galaxy groups like the one pictured here. COSMOS-Web is a 255-hour Webb Treasury programme that maps 0.54 square degrees, a little more than two-and-a-half times the area covered by three full moons, of the COSMOS field using four NIRCam filters."Studying galaxy groups is critical for understanding how individual galaxies link up to form galaxy clusters, the largest gravitationally bound structures in the Universe. Belonging to a galaxy group can also alter the course of a galaxy's evolution through mergers and gravitational interactions," ESA added in a statement.
These galaxies glow with white-gold light as seen by the Webb Telescope. (Photo: Nasa)
advertisementThe image combines data from Webb's Near-InfraRed Camera (NIRCam) instrument with further infrared observations from Hubble telescope.Webb's infrared capabilities and sensitive instruments have pushed the search for galaxy groups farther back into cosmic history, revealing galaxy groups as far back as when the Universe was only 1.9 billion years old – just 14% of its current age.
Hashtags

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles


NDTV
12 hours ago
- NDTV
"May Not Look, Sound Like Us": Axiom-4 Mission Chief On Extraterrestrial Life
New Delhi: Likening a visit to the space station to a camping trip, former NASA astronaut and Axiom-4 mission commander Peggy Whitson said the orbital station has enough food, water and other supplies to sustain the daily lives of those on board. "We have wet towels that we can use every day to clean ourselves. And we have enough resources from food and water perspectives that we can provide for ourselves. So it isn't like going to some ultra-rich hotel spa or whatever. It is very much a bit of a camping trip. But it's a lot of fun," she told NDTV. Days ahead of the mission's June 10 launch, Dr Whitson said that the most "special part" would be the integration of her team of four with the seven astronauts already on board the International Space station (ISS). The orbital station, she said, is equivalent to inter-connected bus-sized modules of various sizes with four pull-up laboratories, a toilet, exercise hardware and life support systems. "There's actually a lot more space than you think. But obviously, by increasing the crew size by four, it will be a challenge for us to all integrate and work together," she said when asked if the ISS will become crowded when the Axiom-4 team enters it. Should the Axiom-4 mission launch be successful, Dr Whitson and her team members Group Captain Shubhanshu Shukla, European Space Agency project astronaut Slawosz Uznanski-Wisniewski of Poland, and Tibor Kapu of Hungary will be seen floating around the orbital lab amid its screens, plugs, wires, switches, pipes and knobs. But what she is confident of is life far beyond among the billions of galaxies that unfold outside the space station's portal windows. "I haven't seen any (extraterrestrial life) with my own eyes. But what I have seen is just billions and billions of stars. And this is just our little galaxy. And there's billions and billions of galaxies. And I know, I know there has to be other life out there, because it is so expansive. I'm sure it exists, it may not look or sound like us," Dr Whitson said. That, she said, is the what pushes the idea of exploration and drives the continuous development of technologies further and further to find out about life beyond Earth. Dr Whitson and her colleague Mr Shukla, who is called "Shux" by the team, will especially look at India from space. "All of planet Earth is beautiful. India is special as well. It's relatively easy to pick out India because of the geography. I'm looking forward to seeing it again," she said. The Axiom-4 mission will launch on June 10 at 5.52 pm IST on board SpaceX's Falcon-9 rocket from the Kennedy Space Centre in Florida. Mr Shukla will be the second Indian to travel to space four decades after Rakesh Sharma's iconic spaceflight onboard Russia's Soyuz spacecraft in 1984. Once docked, the astronauts plan to spend up to 14 days aboard the orbiting laboratory, conducting science, outreach, and commercial activities. The Axiom-4 astronauts will perform around 60 scientific studies and activities representing 31 countries during their 14-day stay at the ISS. Mr Shukla is set to conduct exclusive food and nutrition-related experiments developed under a collaboration between the Indian Space Research Organisation (ISRO) and the Department of Biotechnology (DBT), with support from NASA. The experiments aim to pioneer space nutrition and self-sustaining life support systems, vital for future long-duration space travel. ISRO has lined up a set of seven experiments for Mr Shukla, who will also participate in five joint studies planned by NASA for its human research programme. It has drawn up plans to focus on India-centric food for carrying out experiments on the ISS, including sprouting methi (Fenugreek) and moong (green gram) in microgravity conditions.


NDTV
13 hours ago
- NDTV
Two Galaxy Clusters That Collided Previously Are All Set To Smash Again
Two galaxy clusters that previously collided are now heading for another round of cosmic headbutt, NASA's Chandra X-ray Observatory and other telescopes have found. Located 2.8 billion light years from Earth, each of the two galaxy clusters contain thousands of galaxies, vast quantities of dark matter and superheated gas. The two colliding clusters, together known as PSZ2 G181, resemble an irregular violet peanut shell with bulbous ends linked by a tapered middle. A composite image of the cosmic event shows crescent-shaped structures surrounding the system. As per the astronomers, these are likely shock fronts, described as massive, sonic-boom disturbances, often located near a dense core remnant. The shock fronts created from the initial impact have since moved apart and are now about 11 million light-years away from each other - the widest separation ever recorded. This suggests just how massive and long-lasting the effects of galaxy collisions can be. "Bracketing the combined galaxy cluster, these shock fronts were caused by the initial collision about a billion years ago. They are currently separated by 11 million light-years," NASA stated. Despite their enormous distance, the galaxy clusters are gravitationally bound and slowly turning back for another high-speed impact. "Now, data from NASA's Chandra and ESA's XMM-Newton is providing evidence that PSZ2 G181 is poised for another collision. Having a first pass at ramming each other, the two clusters have slowed down and begun heading back toward a second crash." As per Andra Stroe, the lead author of the study, the second encounter offers scientists the chance to observe a lower-mass system undergoing the kind of large-scale violence typically seen in more massive clusters. Additionally, the collision could provide more insights into the mysterious unseen substance known as dark matter, as well as the evolution of the universe.


Time of India
15 hours ago
- Time of India
Hint of ‘life' beyond Earth? Study reveals ‘surprising' biological activity on a distant planet
In the age of scientific evolution, technological advancements, and space exploration, we have often pondered over this one question for years – is there any planet beyond Earth that could sustain what we know as 'life'? Any planet that might be habitable for living beings in the future? In April 2025, the scientific community was abuzz with a groundbreaking announcement: astronomers had detected dimethyl sulfide (DMS) in the atmosphere of exoplanet K2-18b, located 124 light-years from Earth. DMS is a compound produced solely by biological processes on Earth, primarily by marine phytoplankton. This discovery was hailed as the strongest evidence yet of potential extraterrestrial life beyond our solar system. However, just weeks later, scientists are urging caution and emphasizing that the initial excitement may have been premature. Why? While the detection of DMS is intriguing, it does not definitively prove the existence of life on K2-18b. The compound could also be produced by unknown non-biological processes, and further observations are needed to confirm its origin. As per Dr. Luis Welbanks, a postdoctoral research scholar at Arizona State University's School of Earth and Space Exploration, 'It was exciting, but it immediately raised several red flags because that claim of a potential biosignature would be historic, but also the significance or the strength of the statistical evidence seemed to be too high for the data.' What is K2-18b? K2-18b, classified as a "Hycean" world, is a super-Earth exoplanet, meaning it's larger and more massive than Earth, that orbits a red dwarf star called K2-18. It's located about 124 light-years away from Earth in the constellation Leo. The planet is in its star's habitable zone, meaning it could potentially have liquid water on its surface, according to NASA. The exoplanet has a hydrogen-rich atmosphere and a subsurface ocean. This environment could potentially support microbial life. In addition to DMS, the James Webb Space Telescope has detected methane and carbon dioxide in the planet's atmosphere, further suggesting conditions that might be conducive to life. However, despite these promising signs and excitement surrounding the same, scientists remain cautious. The detection of DMS alone is not sufficient to confirm the presence of life. As Professor Nikku Madhusudhan, of the University of Cambridge and the lead author of the April study , noted, "We have to question ourselves both on whether the signal is real and what it means." The initial excitement surrounding the discovery of DMS on K2-18b underscores the growing interest in the search for extraterrestrial life. However, it also highlights the complexities and challenges of interpreting data from distant exoplanets. Nikku Madhusudhan and his colleagues have conducted additional research that they say reinforces their previous finding about the planet. And it's likely that additional observations and research from multiple groups of scientists are on the horizon. The succession of research papers revolving around K2-18b offers a glimpse of the scientific process unfolding in real time. It's a window into the complexities and nuances of how researchers search for evidence of life beyond Earth — and shows why the burden of proof is so high and difficult to reach. However, the search for life beyond Earth continues. 'Are we really alone in this vast universe?' As scientists continue to analyze the data and conduct further observations, the prospective answers to that very question remain open. Analysis finds evidence for many exoplanets made of water and rock around small stars