James Webb Space Telescope

A slice of the COSMOS-Web map, showing galaxies across nearly 14 billion years of the universe's history. The vertex on the left indicates the current time; moving outward, each galaxy is located at its own distance in cosmic time, until you reach a time when the universe was less than a billion years old. Light yellow areas show the dense clusters and filaments of the cosmic web, and dark areas indicate the nearly empty spaces between them. Credit: Hossein Hatamnia, UC Riverside

James Webb Space Telescope reveals sharpest map of the cosmic web

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The COSMOS-Web survey, the largest survey ever conducted with the James Webb Space Telescope, allows astronomers to track galaxies within nebulae, clusters, and cosmic voids across nearly 13.7 billion years of history.
NASA's James Webb Space Telescope has captured striking new images of the "Bare Skull Nebula," a ghostly cloud of gas and dust orbiting a dying star. The nebula, PMR 1, eerily resembles a brain inside a transparent skull, with a dark stripe down the center dividing it into two hemispheres. Credit: NASA, ESA, CSA, STScI; Image processing: Joseph DePasquale (STScI)

Webb Space Telescope reveals creepy nebula that looks like a giant brain

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

What is the maximum size of a planet? After discovering huge gas giants, it's hard to know

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Webb captures the “final breath” of a sun-like star in the Helix Nebula

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The sharpest infrared observation yet of a nearby planetary nebula reveals comet-like bonds of gas and dust, illustrating how material from a dying star becomes the seeds of future systems.
The eye is immediately drawn, in this month’s new image from the James Webb Space Telescope (NASA/ESA/CSA), to the “monster” at the center: the galaxy cluster Abell S1063. This huge collection of galaxies, located about 4.5 billion light-years from Earth in the constellation Grus (the Crane), dominates the field of view. A closer look reveals glowing streaks and curved arcs around it—the product of gravitational lensing—and it is precisely these that attract the researchers’ attention: these arcs are magnified and distorted images of faint, ancient galaxies from the distant universe.

Webb Space Telescope reveals that faint galaxies were more common in the early universe

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Analysis of deep observations suggests that small galaxies may explain much of the rate of star formation at cosmic dawn – but further verification is needed
A perfect cosmic circle captured by Webb shows a distant spiral galaxy twisted around a closer elliptical galaxy. This Einstein ring provides a glimpse into the warped nature of spacetime. Credit: ESA/Webb, NASA & CSA, G.

2025 in Space Summary: Hints of Life, a Commercial Moon, and a Sharper Look at the Risks

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Webb reignited the debate about signs of life on distant planets, the Moon advanced thanks to commercial missions, and Earth's orbit reminded us how crowded and fragile it is – with launches, a nearby asteroid, and preparations
A photograph of Comet i3/Atlas from Mars orbit.

NASA Sums Up Interstellar Comet 3I/ATLAS Passage: A “Frozen Fossil” from an Alien Solar System

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A fleet of spacecraft and telescopes – from Hubble and James Webb to spacecraft orbiting Mars – tracked comet 3I/ATLAS, the third to reach us from outside the solar system, and discovered a composition and geometry different from local comets but
Left: An artist's impression of a globular cluster near its birth, inhabited by extremely massive stars with powerful stellar winds rich in elements processed at extremely high temperatures. Right: An ancient globular cluster as it appears today: the remaining light stars retain traces of the winds of those extremely massive stars, which have already collapsed into intermediate-mass black holes. Credit: Fabian Bodensteiner; Background: Image of the Milky Way's globular cluster Omega Centauri, taken with the WFI camera at ESO's La Silla Observatory.

Stars 10,000 times more massive than the Sun dominated the early universe

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A new model suggests that extremely massive stars in ancient globular clusters shaped their chemical composition, contributing to the formation of the first galaxies and the emergence of intermediate-mass black holes.
Artist's impression of the exoplanet GJ 1132 b and its host M dwarf. Credit: Dana Berry, Skyworks Digital, CfA

Webb solves mystery: Earth-like planet GJ 1132b has no atmosphere

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New observations from the James Webb Space Telescope indicate that GJ 1132 b, a rocky planet close to an M-type red dwarf, is unable to maintain an atmosphere—a finding that undermines hopes
The research team

New study reveals: Most massive stars in the early universe were born in pairs

Cassiopeia A supernova. Image credit: NASA, ESA, CSA, Danny Milisavljevic (Purdue University), Tea Temim (Princeton University), Ilse De Looze (UGhent). Processing: Joseph DePasquale (STScI).

James Webb Telescope reveals unprecedented details in supernova remnant Cassiopeia A

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Infrared image reveals complex structures, the "green monster," and a glimpse into the sources of cosmic dust – the building blocks of stars, planets, and life
Mysterious "dark dwarfs" can shine forever by burning dark matter – and finding them could solve one of the universe's greatest mysteries. a href="https://depositphotos.com. ">Illustration: depositphotos.com

The stars that don't burn – they destroy dark matter

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Astronomers propose the existence of "dark dwarfs" - objects powered by energy from dark matter particles that can shine forever. Their discovery could shed light on one of the universe's greatest mysteries.
An artist's impression of CAPERS-LRD-z9, home to the earliest confirmed black hole. The supermassive black hole at its center is thought to be surrounded by a thick cloud of gas, giving the galaxy its distinctive red color. Credit: Erik Zumalt, The University of Texas at Austin

Webb Telescope Discovers Oldest Black Hole – Breaking Universe Records

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Astronomers using the James Webb Space Telescope have detected the oldest confirmed supermassive black hole, found in a rare "Little Red Spot" galaxy and formed just 500 million years after the Big Bang.
An illustration of what a dark dwarf might look like. Credit: Sissa Medialab

Dark dwarfs lurk in the center of the galaxy – a clue to the nature of dark matter

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Researchers from the UK and Hawaii propose for the first time the existence of substellar objects powered by dark matter, which may shed light on one of the greatest mysteries in modern cosmology.
An asteroid on its way to collide with Earth. Illustration: depositphotos.com

Webb Telescope measurements dispel fears about asteroid 2024 YR4

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While in the past, percentages of risk for a dangerous encounter with Earth were measured, the new data from advanced discoveries with NIRCam and MIRI indicate absolute confidence – with unique discoveries in the thermal and structural properties of the asteroid.
A perfect cosmic circle captured by Webb shows a distant spiral galaxy twisted around a closer elliptical galaxy. This Einstein ring provides a glimpse into the warped nature of spacetime. Credit: ESA/Webb, NASA & CSA, G.

Webb captures perfect Einstein ring that reveals hidden galaxy

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A stunning new image from the James Webb Space Telescope reveals a cosmic illusion called an Einstein ring, where the light from a distant galaxy is distorted into a perfect circle by the gravity of a closer galaxy.
The main asteroid belt. Image: NASA

The James Webb Space Telescope reveals the smallest asteroids yet found in the main asteroid belt

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A group of 138 new asteroids, ranging in size from a bus to a stadium, has been discovered in the asteroid belt between Mars and Jupiter by observations of the Webb Space Telescope
Illustration of the Kepler-51 system and its three inner planets, characterized by extremely low density. New observations from NASA's James Webb Space Telescope indicate that at least one more planet exists in the system. Credit: NASA, ESA L. Hustak, J. Olmsted, D. Player F. Summers (STScI).

Another planet from the "cotton ball" family was discovered in the Kepler-51 system

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This image of the Sombrero galaxy, taken by Webb's Medium AA camera, is shown with compass arrows, a scale, and a color key. The image shows wavelengths of medium AA light translated into visible light colors. The color key shows the filters used when they collected the light. The color of each filter name is the color of the visible light used to represent the AA light passing through that filter. The north and east compass arrows show the direction of the image in the sky. Credit: NASA, ESA, CSA, STScI

The Webb Space Telescope photographs the Sombrero Galaxy in a new light

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A planet with an atmosphere. The image was prepared using DALEE and is not a scientific image

Life beyond the earth? James Webb Space Telescope Probes Crucial Clues About Distant Planets

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New research suggests that rocky planets orbiting red dwarfs may have stable atmospheres suitable for life, with promising evidence from the James Webb Space Telescope
The time travel of the James Webb Space Telescope. Photo: NASA

A bright surprise in the early universe: new discoveries from the James Webb Space Telescope

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Among the impressive achievements of the telescope is the detection of very early galaxies, which developed only about 300 million years after the Big Bang
The James Webb Space Telescope enables a detailed analysis of the atmospheres of extrasolar planets and the possibility that they have life. Credit: NASA GSFC/CIL/Adriana Manrique Gutierrez

Molecular illusion: Laboratory findings cast doubt on signs of extraterrestrial life

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New research challenges the assumption that specific molecules detected on other planets are a sign of life, showing that they can be synthesized under controlled laboratory conditions without any biological activity
Image: This artist's rendering of a planet-forming disk surrounding a young star shows a swirling "pancake" of hot gas and dust from which planets form. Using the James Webb Space Telescope, the team obtained detailed images showing the layered, conical structure of the disc's winds - streams of gas blowing out into space. Credit: National Astronomical Observatory of Japan (NAOJ)

Winds of Change: The James Webb Space Telescope Reveals Elusive Details in Young Star Systems

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Astronomers have discovered new details about gas flows that shape planet-forming disks and shape them over time, offering a glimpse into how our solar system likely formed
The galaxy cluster PLCK G165.7+67.0 and SN H0pe as imaged by the NIRCam instrument on the Webb Space Telescope. Credit: NASA, ESA, CSA, STScI, Brenda Frey (University of Arizona), Roger Windhorst (ASU), S. Cohen (ASU), Jordan CJ D'Silva (UWA), Anton M. Cuckmore (STScI), Jake Summers (ASU)

The Webb Space Telescope discovered a supernova that updates the Hubble constant - the expansion rate of the universe

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The discovery of SN H0pe, a distant supernova that was observed in three replicates using gravitational insolation, allowed researchers to accurately measure the Hubble constant at different times, revealing insights into the expansion rate of the universe
Hubble Space Telescope (HST) near-infrared image of the galaxy NGC 891. Credit: HST/NASA/ESA.

Astronomers study the nature of galaxy NGC 891 with the James Webb Space Telescope

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The diameter of the galaxy is about 100,000 light years and it is classified as a normal star-forming spiral galaxy, with similarities to the Milky Way but with a slightly higher global star formation rate
The Webb telescope, seen in the lower right corner of this figure, was used to verify the presence of mummified minerals on the surface of the asteroid Psyche. Credit: Southwest Research Institute

The Webb telescope reveals water compounds in asteroid Psyche

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The observations will help analyze data from NASA's Psyche spacecraft on its way to this interesting asteroid that orbits the Sun in the main asteroid belt - between Mars and Jupiter
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