Comprehensive coverage

James Webb Space Telescope

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

  • No comments
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

  • 9 תגובות
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

  • No comments
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 unclear whether the "frozen" state of the galaxy is temporary or permanent, and what is the reason for the cessation of the star formation process
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

  • 8 תגובות
Webb's measurements provide new light on a decade-long mystery known as the Hubble voltage - the differences in the age of the universe between the Hubble observations and past observations that remain unexplained * Prof. Adam Ries, winner of the Nobel Prize in Physics for the discovery of dark energy heads the project
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

  • One response
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

  • 3 תגובות
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

  • 4 תגובות
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

  • No comments
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 disk of gas tilted from our main disk and because of our vantage point it looks like a cat's tail
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

  • 10 תגובות
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

  • One response
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

  • 3 תגובות
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

  • 3 תגובות
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

  • 3 תגובות
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

  • 5 תגובות
This is the first time that such an emission of water 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 Saturn and its rings
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

  • 7 תגובות
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

  • 19 תגובות
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 these 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

  • 2 תגובות
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 fragments from the collisions of larger bodies, corresponding to asteroids and comets, and are often described as "fragment disks"
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

  • 4 תגובות
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

  • 3 תגובות
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

  • No comments
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 the Web, it is possible to reach even lighter protostars, as small as a tenth of our sun
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

  • 2 תגובות
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 after only two orbits
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

  • 9 תגובות
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. "It's like an archaeological dig, when you suddenly find a lost city or something you didn't know about," said one of the researchers
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

  • No comments
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 that was previously captured in an iconic image by the Hubble Space Telescope at the start of its operation and returned to after upgrades, along with Strong landmasses
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

  • One response
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

  • 7 תגובות
Webb's instruments reveal new details about star formation
Science website logo
SEARCH