James Webb Space Telescope

The Webb Space Telescope has provided evidence that contradicts existing theories by confirming the existence of long-lived protoplanetary disks in heavy-element-deficient environments, suggesting the need to change our understanding of planet formation in the early universe. Credit: NASA, ESA, CSA, STScI, Olivia C. Jones (UK ATC), Guido de Markey (ESTEC), Margaret Meixner (USRA)

The James Webb Space Telescope challenges theories about the formation of planets in the early universe

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New discoveries indicate that protoplanetary discs can survive longer in environments poor in heavy elements, contrary to previous assumptions
A picture of the three red monsters taken by Webb. Credit: NASA/CSA/ESA, M. Xiao & PA Oesch (University of Geneva), G. Brammer (Niels Bohr Institute), Dawn JWST Archive

"Red monsters" from the cosmic dawn: discoveries that challenge models of galaxy formation

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This image taken by Webb shows an ancient quasar (in the red circle) with fewer neighboring galaxies than expected. Credit: Christina Eilers/EIGER team

The Webb Space Telescope discovers quasars where they shouldn't exist

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Astronomers have used the Web to discover individual ancient quasars of uncertain origin
The James Webb Space Telescope in front of the galaxy cluster SMACS 0723, the first galaxy field revealed by the telescope. Early results from the James Webb Space Telescope have revealed surprisingly large early galaxies, challenging current cosmic models. Credit: NASA, ESA, CSA, STScI

Tel Aviv 360 podcast: Two years of James Webb, episode 1: The great wonder in the sky

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In the first episode we will talk with Professor Dan Maoz, from the School of Physics and Astronomy: we will understand how the telescope works and what distinguishes it from its predecessors, about the advantage of viewing in infrared light, how the scientific community works with the telescope,
The 25 most interesting images taken by the Chandra Space Telescope in its 25 years so far. Credit: NASA/SAO/CXC

NASA's Chandra X-ray Observatory Celebrates 25 Years With Impressive Cosmic Images

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Since its launch in 1999, Chandra has helped unravel cosmic mysteries, supported the research of thousands of astronomers, and maintained its status as a cornerstone of astrophysical research.
An international team of astronomers using the NASA/ESA/CSA James Webb Space Telescope has directly imaged an extrasolar planet about 12 light-years from Earth. Although there were hints that the planet existed, it was not confirmed until Webb photographed it. The planet is one of the coldest exoplanets observed so far.

Webb photographs a cold extrasolar planet 12 light years away

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The mass of the planet, named Epsilon Indi Ab, is about three times that of Jupiter and it orbits the K-type star Epsilon Indi A, which is about the age of the Sun but is slightly
This "penguin party" is loud. The twisted spiral galaxy in the center, known as the Penguin, and the compact elliptical galaxy to the left, known as the Egg, are in an active embrace. A new near- and mid-infrared image from the James Webb Space Telescope, taken to mark two years of scientific activity, shows that their interaction is marked by a subtle, inverted U-shaped blue glow. Credit: NASA, ESA, CSA, STScI

The Penguin and the Egg: A Living Portrait of Interacting Galaxies to Mark the Second Anniversary of the Webb Space Telescope

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Researchers speculate that the penguin had the shape of a spiral. Today, its galactic center shines like an eye, its disordered arms now shaping as a beak, head, spine, and spread tail. The elliptical galaxy that looks like
For the first time, a phenomenon that astronomers had long hoped to photograph directly has been captured by the NASA/ESA/CSA James Webb Space Telescope's Near Infrared Camera (NIRCam). In this spectacular image of the Serpent Nebula, the discovery is in the northern region of the Young Zone And this star-forming relative NASA, ESA, CSA

Alignment of dipolar jets confirms star formation theories

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First-of-its-kind identification of straight jets in spectacular new Webb Space Telescope image
The JADES Deep Field uses observations made by the James Webb Space Telescope (JWST) as part of the JADES (JWST Advanced Deep Survey) program. A team of astronomers studying the JADES data identified about 80 objects (circled in green) that changed their brightness over time. Most of these objects, called transients, are the result of exploding stars or supernovae. Credit: NASA, ESA, CSA, STScI, JADES Collaboration

The 'Webb' space telescope is a device for detecting supernovae: thanks to it, 10 times more supernovae were observed in the early universe

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'Web' discovers 10 times more supernovae in the early universe than were previously known
Artist's impression of a protoplanetary disk. Credit: ESA

The Webb Space Telescope finds an abundance of carbon molecules around a young star

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"It's amazing that we can detect and quantify the amount of molecules we know very well on Earth, like benzene, which is actually more than 600 light-years away," said one of the authors of the paper that appeared.
This image of NGC 5468, a galaxy about 130 million light-years from Earth, combines data from the Hubble and James Webb space telescopes. It is the most distant galaxy in which Hubble has detected variable Cepheid stars. These stars serve as important landmarks for measuring the expansion rate of the universe.

The Webb and Hubble space telescopes confirm the universe's expansion rate, the puzzle continues

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Web sightings provide new insights into a decade-long mystery
This artistic concept shows what the extrasolar planet 55 Cancri e might look like. The star, also called Janssen, is a super-Earth, a rocky planet significantly larger than Earth but smaller than Neptune, orbiting its star at a distance of only 1.4 million miles (0.015 AU), completing a full orbit in less than 18 hours. (The planet Mercury is 25 times farther from the Sun compared to 55 Cancri e from its star). The system, which also includes four large gaseous planets, is located about 41 light-years from Earth, in the constellation Cancer. Credit: NASA, ESA, CSA, Ralph Crawford (STScI)

Super-Earth secrets: James Webb telescope reveals unexpected atmosphere of extrasolar planet

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The gases that cover 55 Cancri e bubble from its interior. The primordial atmosphere has long since disappeared due to the high temperature and intense radiation from the star
An artist's rendering of a Tidal Disruption Event (TDE), a star torn apart by the powerful gravity of a massive black hole. Credit: Sophia Dagnello, NRAO/AUI/NSF

Cosmic Archaeology: Using Black Holes to Discover Evidence of the Universe's First Stars

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To date there have been no convincing direct detections of Pop III stars - the first stars, because these stars formed in the early universe are very far away and too faint for our ground-based telescopes or
An artist's concept of WASP-107 b shows turbulent atmospheric mixing within the planet's gas mantle. Credit: Roberto Muller Candanosa/Johns Hopkins University NASA, ESA, CSA, Ralf Crawford (STScI)

The Webb Space Telescope offers the first glimpse into the interior of an extrasolar planet

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Methane found in WASP-107 b reveals core mass and stormy sky
Artistic image of the planet Proxima Centauri b'. Credit: ESO/M. Kornmesser

New research investigates the effect of ozone on the climates of extrasolar planets

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A team of researchers led by Dr. Assaf Hochman from the Hebrew University revealed the role of ozone in shaping the atmospheric dynamics of Proxima Centauri b. Their findings, derived from advanced models of climate chemistry and advanced theories of
An artist's rendering of the planet SPECULOOS-3 b orbiting its sun. The planet is the size of Earth, while its sun is slightly larger than Jupiter, but much more massive. Credit: NASA/JPL-CALTECH

Discovery of an Earth-sized planet orbiting the supercold dwarf star SPECULOOS-3

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The SPECULOOS project revealed the existence of an Earth-sized planet around SPECULOOS-3, a nearby star similar in size to Jupiter and twice as cold as our Sun
Image: Horsehead Nebula (NASA Webb NIRCam): This image of the Horsehead Nebula, taken by NASA's James Webb Space Telescope, focuses on a portion of the "Horse's Mane" that is about 0.8 light-years across. It was taken using a camera Webb's NIRCam (near-infrared camera) The airy clouds at the bottom of the image are dominated by cold molecular hydrogen. Red streaks extending above the main nebula represent mostly atomic hydrogen gas in this region, known as the photodissociation region and from nearby masses creates a mostly neutral region of gas and dust between the fully ionized gas above and the cooler nebula below. As in many Webb images, distant galaxies are scattered in the background. This image consists of light at wavelengths of 1.4 and 2.5 microns (shown in blue), 3.0 and -3.23 µm (cyan), 3.35 µm (green), 4.3 µm (yellow), and 4.7 and 4.05 µm (red). Credit: NASA, ESA, CSA, K. MISSELT (UNIVERSITY OF ARIZONA) and A. ABERGEL (IAS/UNIVERSITY PARIS-SACLAY, CNRS)

The Horsehead Nebula in unprecedented detail from the James Webb Space Telescope observations

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The galaxy cluster Abel 2744 or the Pandora cluster. The researchers looked at the galaxies behind it. Photograph of the Hubble Space Telescope

The first light in the universe

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James Webb Space Telescope observations of galaxies in the young universe revealed that the first light in space came from bright young stars
Artificial color JWST image of a small portion of the GOODS South field, with emphasis on JADES-GS-z7-01-QU. This type of galaxy is extremely rare. Credit: JADES Collaboration

Cosmic Time Runs Back: Webb Space Telescope Discovers 'Dead' Galaxy 13 Billion Years Old

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This galaxy experienced a tumultuous and fast life: the star formation process worked quickly and suddenly ended, a situation that is not expected at such an early stage in the evolution of the universe. It is still not clear if the "frozen" state of the galaxy
NGC 5468 — the host galaxy of Cepheid. Joint photograph of the Webb and Hubble Space Telescopes, NASA/ESA

The Webb and Hubble telescopes confirm the rate of expansion of the universe, the puzzle remains

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Webb's measurements provide new light on a decade-long mystery known as the Hubble stress - the differences in the age of the universe between the Hubble observations and past observations that remain unexplained * Prof. Adam Rees, winner
thanks for the correction. The corrected translation would be: SwRI scientists used data from the James Webb Space Telescope to model the geothermal processes in the subsurface that may explain how methane reached the surface of Eris and Maki Maki, two dwarf planets in the distant Kuiper Belt. The figure suggests three possibilities, including the likelihood that liquid water exists within these icy bodies at the edge of the solar system, far from the sun's heat. Credit: Southwest Research Institute.

Astronomers reveal surprising activity on the dwarf planets Eris and Maki Maki

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The Webb telescope has observed what appear to be young methane deposits on the surface of Eris and Maki Maki
19 spiral galaxies imaged by the Webb Space Telescope. Courtesy of the European Space Agency and NASA

Web shows amazing structures in 19 nearby spiral galaxies

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These are relatively close galaxies that face the Earth. The research reveals new details about the way galaxies are formed
long image captionThis is part of the Evolution of the Universe Early Science Survey (CEERS), consisting of several near-infrared points from the NIRCam (Near Infrared Camera) camera on the James Webb Space Telescope. These observations are being made in the same region studied by the Hubble Space Telescope, known as the Extended Groth Belt. Arrows showing the directions north and east show the direction of the image in the sky. It should be noted that the relationship between north and east in the sky (as seen from below) is reversed compared to the half directions on the map of the earth (as seen from above). The image shows invisible near-infrared wavelengths converted to visible colors. The color key shows which NIRCam filters were used to collect the light. The name color of each filter is the visible color that represents the infrared light passing through that filter. The barrel ruler is marked with arc-seconds which are a measure of angular distance in the sky. One arc-second is equal to an angular measurement of 1/3600 of one degree. There are 60 arc-minutes in a degree and 60 arc-seconds in an arc-minute. (The full moon has an angular diameter of about 30 arc-minutes.) The actual size of an object that covers one arc-second in the sky depends on its distance from the telescope. Credit: NASA, European Space Agency (ESA), Canadian Space Agency (CSA), Space Telescope Science Institute (STScI), Steve Finkelstein (University of Texas at Austin)

The James Webb telescope reveals: galaxies in the early universe have a long and flat shape

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The first galaxies were much less developed than the spiral and spherical galaxies that exist today, which are actually the result of mergers, both because of the stage of development but also because of the conditions that prevailed at the time
This image from Webb's MIRI (mid-infrared) camera shows the star system Beta Pictoris. A flat disk of dust fragments, formed by collisions between planetesimals (orange), dominates the landscape and is called the "main disk plane". In the lower left corner, Webb showed the true extent of the secondary disk (cyan (turquoise), which is inclined 5 degrees relative to the primary disk. Webb also discovered a previously unseen feature called the "cat's tail." A coronagraph (a black circle and two small disks) was used to block The light of the central star. Scale bar shows that the disks of Beta Peak (pictoris) span hundreds of astronomical units (AU), where one AU is the average distance from Earth to the Sun. (In our solar system, Neptune orbits the Sun at a distance of 30 AU) in this image , light at a wavelength of 15.5 microns is shown in cyan (turquoise) and 23 microns in orange (F1550C and F2300C filters, respectively). Credit: NASA, ESA, CSA, STSCI, C. STARK and K. LAWSON (NASA GSFC), J. KAMMERER (ESO), and M. PERRIN (STSCI).

The Webb Space Telescope discovered a 'cat's tail' made of dust in the Beta Pictoris system

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Beta Pictoris is a solar system in the making and relatively close so that the gas disks can be seen. It turns out that Webb was able to discover a structure that was not noticed in photographs with less sensitive instruments, thus he discovered a gas disk
The large galaxy at the front of the image is LEDA 2046648, and it looks just over a billion years back in time, while most of the others are even further away, and therefore look further back in time. Credit: ESA/Webb, NASA & CSA, A. Martel

Looking into the past: how James Webb is rewriting our understanding of ancient galaxies

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Jupiter (Webb NIRCam image): This image of Jupiter from NASA's James Webb Space Telescope NIRCam (Near Infrared Camera) shows spectacular detail of the planet, which is impressive in infrared light. In this image, brightness indicates a high altitude . The many white "dots" and "marks" are likely very high-altitude cloud edges of condensed convection. The auroras, shown in red in this image, extend to higher altitudes over both the planet's north and south poles. In contrast, dark bands north The equatorial region has no cloud caps. Credit: NASA, ESA, CSA, STScI, Ricardo Huasso (UPV), Imeka de Pater (UC Berkeley), Thierry Fouche (Paris Observatory), Lee Fletcher (University of Leicester), Michael H Wong (UC Berkeley), Joseph DePasquale (STScI)

Fast and furious: Jupiter's secret jet stream accelerates up to 500 km/h

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The James Webb Space Telescope discovered a previously unseen jet stream in Jupiter's atmosphere. Similar phenomena have been observed in Saturn, and both may be related to temperature variations in the atmospheres of the gas giants
Gamma ray burst (Image Credit: NASA/Swift/Mary Pat Hrybyk-Keith and John Jones via NASA)

Elements essential to life were created following a massive explosion in space

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Webb's close-up, high-resolution ESA view of Herbig-Haro 211 reveals exquisite details of the young star's jet. Credit: ESA/Webb, NASA, CSA, Tom Ray (Dublin)

Webb photographed supersonic jets from a star of his day

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Herbig-harrows are luminous regions surrounding young stars. They form when stellar winds or jets of gas ejected from these stars create shock waves that collide at high speeds with nearby gas and dust.
The Webb Space Telescope photographed the Ring Nebula. On the left using the NIRCam camera and on the right using MIRI. Credit: ESA/Webb, NASA, CSA, M. Barlow, N. Cox, R. Wesson

ווב לוקד את יופייה המפורט של ערפילית הנגעת

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The Ring Nebula, formed by a star shedding its outer layers, is a classic example of a planetary nebula and is also relatively close to us.
An artist's impression of the Cassini spacecraft flying through plumes erupting from the south pole of Saturn's moon Enceladus. These geysers are very similar to geysers and emit a mixture of water vapor, ice grains, salts, methane and other organic molecules. Credit: NASA/JPL-Caltech

The Webb Space Telescope discovers a 10,000 km long plume of water erupting from Saturn's moon Enceladus

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This is the first time that such a water emission has been seen from such a great distance, and in addition, the Web allows researchers a direct view, for the first time, of how this emission feeds the water supply of the entire system of
The galaxy GS-9209. credit g. brammer c. Williams A. carnall, University of Edinburgh

Webb revealed features of a galaxy 25 billion light years away

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The galaxy is currently 25 billion light-years away, but when light began to travel from it to us about 12.5 billion years ago, it was much closer, because the universe is expanding
SMACS galaxy cluster. This image of the galaxy cluster SMACS 0723 and its surroundings was the first image released from the James Webb Space Telescope in July 2022. The five close-up images are about 19,000 light-years across and show galaxies as they appeared about 13 billion years ago. Careful analysis of these galaxies reveals that if we cannot resolve the discrepancy, we may greatly underestimate the total mass of its stars. Image credit: NASA, ESA, CSA, STScI / Giménez-Arteaga et al. (2023), Peter Lorsen (Cosmic Dawn Center).

Astronomers are surprised by the unexpected size of galaxies in the early universe photographed by the James Webb Space Telescope

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The first findings from the James Webb space telescope hinted at galaxies so early and massive that they are somewhat inconsistent with our understanding of the formation of structure in the universe. A new study tries to deal with the contradictions
This artist's illustration shows a collision between two bodies of ice and dust orbiting the bright star Pomelhot, 25 light-years away. This may have caused an expanding cloud of very fine dust particles. Credit: ESA, NASA and M. Kornmesser

Webb explores the asteroid belt of the young solar system Pummelhot and discovers evidence of hidden planets

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The belts surround the hot young star, which can be seen with the unaided eye as the brightest star in the southern group Southern Pisces. The dust belts are debris from the collisions of larger bodies, corresponding to asteroids and comets,
A star exploding is a dramatic event, but the debris the star leaves behind can be even more dramatic. A new mid-infrared image from the James Webb Space Telescope provides one stunning example. It shows the remains of the supernova Cassiopeia A (Cas A), created by a stellar explosion 340 years ago. The image shows bright colors and complex structures. Cas A is the youngest known remnant of a massive exploding star in our galaxy, offering astronomers an opportunity to understand the star's death process. Image credit: NASA, ESA, CSA, D. Milisavljevic (Purdue University), T. Temim (Princeton University), I. De Looze (UGent), J. DePasquale (STScI)

Let's see how Cassiopeia is doing: Webb reveals new details on the Cassiopeia A supernova

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Webb recorded what remained after the death of a star only 11 thousand light years away from us. It is a relatively new supernova - only 350 years old
This infrared imaging from the Web's near infrared wavelength camera (NIRCam) combines data from two 1.4 and 3.0 micron filters, shown here in blue and orange, respectively. The planet shows a blue tint in the image obtained with a representative color. Image credit: NASA, ESA, CSA, STScI, J. DePasquale (STScI)

The Webb Space Telescope photographed in detail 11 of the rings surrounding Uranus-Uron

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The Webb Space Telescope photographed in detail 11 of the rings surrounding Uranus-Uron
The Webb Space Telescope observes NGC 346 (NIRCam Image) Photo: NASA, ESA

The Webb Space Telescope reveals star formation in the dusty bands of the Small Magellanic Cloud

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Previous infrared studies of the NGC 346 nebula have focused on stellar embryos heavier than five to eight times the mass of our Sun. With the help of a web, it is possible to reach lighter protostars, very small
The planet LHS 475 b is similar in size to Earth: NASA, ESA, CSA, L. Hustak (STScI)

The Webb Space Telescope has discovered an Earth-sized planet 41 light-years away

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However, the conditions there are more reminiscent of Venus than Earth. It orbits a red dwarf in an orbit that lasts only two days * Webb was able to confirm the existence of the planet
Two of the most distant galaxies ever seen have been revealed in Webb Space Telescope images of the outer regions of the giant galaxy cluster Abell 2744. The galaxies are not inside the cluster, but many billions of light-years behind it. The galaxy shown in the top image in the center was extracted from the image on the left. It existed only 450 million years after the big bang. The galaxy shown in the lower center image is drawn from the image on the right. It existed 350 million years after the big bang. Both galaxies appear to be very close in time to the Big Bang that occurred 13.8 billion years ago. These galaxies are tiny compared to our Milky Way. Webb Space Telescope photo, ESA/NASA

Webb discovered the oldest galaxies, their age and properties surprised astronomers

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One of these galaxies is observed as it appeared about 300 million years after the Big Bang and shines much brighter than expected. This figure now makes researchers estimate that the first galaxies were formed 100 million years after the Big Bang
NASA's James Webb Space Telescope captured a rich and highly detailed view of the "Pillars of Creation." A region where new stars form within dense clouds of gas and dust previously captured in an iconic image by the Hubble Space Telescope in its early days. Credits: NASA, ESA, CSA, STScI; Joseph DePasquale (STScI), Anton M. Koekemoer (STScI), Alyssa Pagan (STScI).

The Webb Space Telescope returns to Hubble's iconic "Pillars of Creation" and finds many more young stars

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NASA's James Webb Space Telescope captured a lush and highly detailed view of the "Pillars of Creation," a region where new stars form within dense clouds of gas and dust previously captured in an iconic image on
Composite image of Jupiter from three filters – F360M (red), F212N (yellow-green) and F150W2 (blue) – and alignment due to the rotation of the planet. Taken from the NIRCam instrument Credit: NASA, ESA, CSA, Jupiter ERS crew; image processing by Judy Schmidt.

The Webb Space Telescope observed Jupiter as never before

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A large spotted pink wheel-like galaxy with a small inner ellipse, with a hazy blue in the middle to the right, with two smaller spiral galaxies of about the same size to the left on a black background. This image of the Wheel Galaxy and its companion galaxies is a composite from the Near Infrared Camera and Webb's Mid-Infrared Instrument, which reveals details that are difficult to see from the separate images alone. Credit: NASA, ESA, CSA, STScI

The Webb Space Telescope Peeps Into Chaos - Captures Stellar Gymnastics in the Wheel Galaxy

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Webb's instruments reveal new details about star formation

The James Webb Telescope reveals in detail the steamy atmosphere of a distant planet

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The light spectrum - which contains information about the composition of a planetary atmosphere at a distance of 1,150 light years - reveals a clear signature of water * The strength of the signal that Webb detected hints at the significant role
The Stephan V group of galaxies (actually IV) - galaxies caught in a sort of cosmic dance, as imaged by a variety of infrared instruments on the James Webb Space Telescope. Image credit: NASA, ESA, CSA and STScI

The James Webb Telescope sheds light on the evolution of galaxies and black holes in the Stefan quintet

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The proximity of four of the five Stefan galaxies to each other (the fifth only seems close) allows astronomers to ignite galactic mergers and intergalactic reactions. And also how the black holes affect the flow of matter
The Carina Nebula in a near-infrared photograph. One of the first images taken by the Webb Space Telescope. Image credit: NASA, ESA, CSA and STScIn

NASA's Webb Telescope reveals cosmic cliffs and star-forming regions in the Carina Nebula

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"Cosmic Cliffs" images show Webb's cameras' ability to peer through cosmic dust, shedding new light on how stars form * Webb's technology can help watch the process
The Southern Ring Nebula as photographed by two different instruments of the Webb Space Telescope - in the near-infrared on the left, and in the mid-infrared on the right. Image credit: NASA, ESA, CSA and STScIn

The Webb Space Telescope photographed the Southern Ring Nebula: the last show of an exploding star

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NASA's James Webb Space Telescope has revealed details of the Southern Ring Nebula that were previously hidden from astronomers. * For the first time, the second star in the binary system, one of whose members has exploded, can be clearly seen * First article
The galaxy cluster SMACS 0723 - the first scientific photograph by the James Webb Space Telescope. This cluster acts as a gravitational lens and increases the light of distant galaxies, including those from the early universe. Photo: NASA, ESA, CSA, and STScI

The first official photograph of the Webb Space Telescope: the highest resolution image of a deep space field

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An experimental photograph taken using the navigation camera of the James Webb Space Telescope and published prior to the announcement of its entry into operation and the publication of the initial images. Photo: NASA

Case in point: Webb photographed the deepest space yet * Live broadcast of the announcement of the first scientific images

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Tonight, July 12, starting at midnight, the American space agency NASA will reveal the first scientific photographs of this advanced space telescope, at a press conference chaired by US President Joe Biden, and NASA head Bill Nelson
NASA's Webb Space Telescope. Credit: NASA Goddard Space Flight Center and Northrup Grumman

The Webb Space Telescope begins aligning several instruments

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So far, the preparations for the operation of the James Webb Space Telescope are progressing as planned
James Webb Space Telescope launch, Kourou - French Guiana. Screenshot from the NASA YouTube channel

James Webb Space Telescope - Hubble's replacement successfully launched - live broadcast

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Today, Saturday, 25.12.21 at 14:20 (Israel time), the James Webb Space Telescope will be launched, the successor to the Hubble Telescope and a new generation of space telescopes, designed to provide answers to the most intriguing questions in astronomy and astrophysics -
The James Webb Space Telescope is the largest orbital telescope ever built. NASA/Desiree Stover, CC BY

The Webb Space Telescope will be launched on Saturday 25/12/21; will look deep into the ancient universe and explore planets

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Astronomer on the telescope team James Webb explains how a huge telescope is launched into space - and why, but first of all, that it will be successfully launched and deployed in the weeks after the launch
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