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James Webb Space Telescope

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See stunning images combining James Webb and Chandra X-ray data

NASA has shared a new view of some famous space images, by combining infrared data from Webb with X-ray data from the Chandra X-Ray Observatory.
Georgina Torbet
This illustration of Comet 238P/Read shows the main belt comet sublimating—its water ice vaporizing as its orbit approaches the Sun. This is significant, as the sublimation is what distinguishes comets from asteroids, creating their distinctive tail and hazy halo, or coma. It is especially important for Comet Read, as it is one of 16 identified main belt comets found in the asteroid belt, as opposed to the colder Kuiper Belt or Oort Cloud, more distant from the Sun. Comet Read was one of three comets used to define the class of main belt comets in 2006.

James Webb investigates mystery of where Earth’s water comes from

The first water may have been brought to our planet by a comet. Now, James Webb is investigating comets to see if they could carry water vapor.
Georgina Torbet
This artist’s concept depicts the planet GJ 1214 b, a “mini-Neptune” with what is likely a steamy, hazy atmosphere. A new study based on observations by NASA’s Webb telescope provides insight into this type of planet, the most common in the galaxy.

James Webb telescope gets a view of the ‘white whale’ of exoplanet research

Located 50 light-years away, the planet GJ 1214 b has defied 15 years of attempted observations due to its hazy nature.
Georgina Torbet
This image of the dusty debris disk surrounding the young star Fomalhaut is from Webb’s Mid-Infrared Instrument (MIRI). It reveals three nested belts extending out to 14 billion miles (23 billion kilometers) from the star. The inner belts – which had never been seen before – were revealed by Webb for the first time.

James Webb gets a stunning view of a far-off planetary system

As well peering back at the earliest galaxies in the universe, the James Webb Space Telescope is also letting astronomers learn more about how planets form.
Georgina Torbet
This artist concept represents the rocky exoplanet GJ 486 b, which orbits a red dwarf star that is only 26 light-years away in the constellation Virgo. By observing GJ 486 b transit in front of its star, astronomers sought signs of an atmosphere. They detected hints of water vapor. However, they caution that while this might be a sign of a planetary atmosphere, the water could be on the star itself – specifically, in cool starspots – and not from the planet at all.

James Webb detects water vapor in rocky planet’s atmosphere — maybe

Water vapor was spotted near the rocky exoplanet GJ 486 b. That could indicate the presence of water in its atmosphere, or it could also be from another source.
Georgina Torbet
Shining like a brilliant beacon amidst a sea of galaxies, Arp 220 lights up the night sky in this view from NASA’s James Webb Space Telescope. Actually two spiral galaxies in the process of merging, Arp 220 glows brightest in infrared light, making it an ideal target for Webb. It is an ultra-luminous infrared galaxy (ULIRG) with a luminosity of more than a trillion suns. In comparison, our Milky Way galaxy has a much more modest luminosity of about ten billion suns.

James Webb captures a stunning image of two galaxies merging

The James Webb Space Telescope has captured a gorgeous image of a dramatic cosmic event: two galaxies colliding.
Georgina Torbet
Cassiopeia A (Cas A) is a supernova remnant located about 11,000 light-years from Earth in the constellation Cassiopeia. It spans approximately 10 light-years. This new image uses data from Webb’s Mid-Infrared Instrument (MIRI) to reveal Cas A in a new light.

James Webb captures stunning image of supernova remnant Cassiopeia A

A stunning new image from the James Webb Space Telescope shows a famous supernova remnant called Cassiopeia A, or Cas A.
Georgina Torbet
This zoomed-in image of Uranus, captured by Webb’s Near-Infrared Camera (NIRCam) on 6 February 2023, reveals stunning views of the planet’s rings. The planet displays a blue hue in this representative-colour image, made by combining data from two filters (F140M, F300M) at 1.4 and 3.0 microns, shown here as blue and orange, respectively.

James Webb captures the rarely-seen rings around Uranus

Following up on its image of Neptune released last year, astronomers using Webb have just released a brand-new image of Uranus as you've never seen it before.
Georgina Torbet
This illustration conceptualises the swirling clouds identified by the James Webb Space Telescope in the atmosphere of the exoplanet VHS 1256 b. The planet is about 40 light-years away and orbits two stars that are locked in their own tight rotation. Its clouds, which are filled with silicate dust, are constantly rising, mixing, and moving during its 22-hour day.

James Webb spots exoplanet with gritty clouds of sand floating in its atmosphere

Exoplanet VHS 1256 b, around 40 light-years away, has an unusual atmosphere where clouds of sand float in temperatures of 1,500 degrees Fahrenheit.
Georgina Torbet
Images of four example galaxies selected from the first epoch of COSMOS-Web NIRCam observations, highlighting the range of structures that can be seen. In the upper left is a barred spiral galaxy; in the upper right is an example of a gravitational lens, where the mass of the central galaxy is causing the light from a distant galaxy to be stretched into arcs; on the lower left is nearby galaxy displaying shells of material, suggesting it merged with another galaxy in its past; on the lower right is a barred spiral galaxy with several clumps of active star formation.

Astronomers share early images from James Webb’s galaxy survey

The snapshot of the sky captured by James Webb shows 25,000 galaxies -- and it's just a taste of what is to come.
Georgina Torbet
Researchers are getting their first glimpses inside distant spiral galaxies to see how stars formed and how they change over time, thanks to the James Webb Space Telescope’s ability to pierce the veil of dust and gas clouds.

How James Webb is peering into galaxies to see stars being born

Researchers are using the James Webb Space Telescope to study galaxies similar to our Milky Way to understand how they grow and evolve.
Georgina Torbet
This observation from the NASA/ESA/CSA James Webb Space Telescope features the massive galaxy cluster RX J2129. Due to Gravitational lensing, this observation contains three different images of the same supernova-hosting galaxy, which you can see in closer detail here. Gravitational lensing occurs when a massive celestial body causes a sufficient curvature of spacetime to bend the path of light travelling past or through it, almost like a vast lens. In this case, the lens is the galaxy cluster RX J2129, located around 3.2 billion light-years from Earth in the constellation Aquarius. Gravitational lensing can cause background objects to appear strangely distorted, as can be seen by the concentric arcs of light in the upper right of this image.

James Webb captures an extremely distant triple-lensed supernova

Webb imaged a huge galaxy cluster located 3.2 billion light-years away, which is acting like a magnifying glass and showing a far-off supernova in triplicate.
Georgina Torbet
Images of six candidate massive galaxies, seen 500-700 million years after the Big Bang. One of the sources (bottom left) could contain as many stars as our present-day Milky Way, according to researchers, but it is 30 times more compact.

James Webb spots ‘universe-breaking’ massive early galaxies

The James Webb Space Telescope continues to throw up surprises, and recently it has been used to spot some very old galaxies which have astonished astronomers.
Georgina Torbet
Astronomers estimate 50,000 sources of near-infrared light are represented in this image from NASA’s James Webb Space Telescope. Their light has travelled through varying distances to reach the telescope’s detectors, representing the vastness of space in a single image. A foreground star in our own galaxy, to the right of the image center, displays Webb’s distinctive diffraction spikes. Bright white sources surrounded by a hazy glow are the galaxies of Pandora’s Cluster, a conglomeration of already-massive clusters of galaxies coming together to form a megacluster.

Webb uses a galactic megacluster as an enormous magnifying lens

To look at some of the most distant galaxies, astronomers take advantage of a phenomenon called gravitational lensing.
Georgina Torbet
Scientists are getting their first look with the NASA/ESA/CSA James Webb Space Telescope’s powerful resolution at how the formation of young stars influences the evolution of nearby galaxies. The spiral arms of NGC 7496, one of a total of 19 galaxies targeted for study by the Physics at High Angular resolution in Nearby Galaxies (PHANGS) collaboration, are filled with cavernous bubbles and shells overlapping one another in this image from Webb’s Mid-Infrared Instrument (MIRI). These filaments and hollow cavities are evidence of young stars releasing energy and, in some cases, blowing out the gas and dust of the interstellar medium they plough into.

James Webb captures swirls of dust and gas in nearby galaxies

The James Webb Space Telescope is helping astronomers to peer into nearby galaxies and see elaborate structures of dust and gas.
Georgina Torbet
This image shows an artist impression of our Milky Way galaxy in its youth. Five small satellite galaxies, of various types and sizes, are in the process of being accreted into the Milky Way. These satellite galaxies also contribute globular star clusters to the larger galaxy. The Sparkler galaxy provides a snap-shot of an infant Milky Way as it accretes mass over cosmic time.

James Webb Telescope catches a glimpse of young version of the Milky Way

The James Webb Space Telescope has got a glimpse into what our galaxy was like in its formative years by observing a distant galaxy called The Sparkler.
Georgina Torbet
An asteroid roughly the size of Rome’s Colosseum — between 300 to 650 feet (100 to 200 meters) in length — has been detected by an international team of European astronomers using NASA's James Webb Space Telescope. They used data from the calibration of the MIRI instrument, in which the team serendipitously detected an interloping asteroid. The object is likely the smallest observed to date by Webb and may be an example of an object measuring under 1 kilometer in length within the main asteroid belt, located between Mars and Jupiter. More observations are needed to better characterize this object’s nature and properties.

A failed Webb telescope calibration leads to the discovery of this tiny asteroid

Data from a failed calibration of Webb's MIRI instrument has been used to spot a tiny asteroid that measures just a few hundred feet across.
Georgina Torbet
A Google blog post discussing its LaMBDA artificial intelligence technology displayed on a smartphone screen.

Oops — Google Bard AI demo is disproven by the first search result

Google has just unveiled its own artificial intelligence called Bard, yet it’s already served up its first piece of misinformation -- during Google’s own demo.
Alex Blake
A crowded field of galaxies throngs this Picture of the Month from the NASA/ESA/CSA James Webb Space Telescope, along with bright stars crowned with Webb’s signature six-pointed diffraction spikes. The large spiral galaxy at the base of this image is accompanied by a profusion of smaller, more distant galaxies which range from fully-fledged spirals to mere bright smudges. Named LEDA 2046648, it is situated a little over a billion light-years from Earth, in the constellation Hercules.

See a stunning field of galaxies captured by James Webb Space Telescope

Stunning images from James Webb continue to entrance, and recently the researchers using the telescope have shared a gorgeous image of a field of galaxies.
Georgina Torbet
This image by the NASA/ESA/CSA James Webb Space Telescope’s Near-InfraRed Camera (NIRCam) features the central region of the Chameleon I dark molecular cloud, which resides 630 light years away. The cold, wispy cloud material (blue, centre) is illuminated in the infrared by the glow of the young, outflowing protostar Ced 110 IRS 4 (orange, upper left). The light from numerous background stars, seen as orange dots behind the cloud, can be used to detect ices in the cloud, which absorb the starlight passing through them.

James Webb peers into icy cloud to learn about exoplanet formation

Researchers using James Webb have peered into a molecular cloud to look for these ices which could be formed into future exoplanets.
Georgina Torbet
The radio telescope array ALMA has pin-pointed the exact cosmic age of a distant JWST-identified galaxy, GHZ2/GLASS-z12, at 367 million years after the Big Bang. ALMA’s deep spectroscopic observations revealed a spectral emission line associated with ionized Oxygen near the galaxy, which has been shifted in its observed frequency due to the expansion of the Universe since the line was emitted. This observation confirms that the JWST is able to look out to record distances, and heralds a leap in our ability to understand the formation of the earliest galaxies in the Universe.

Age of ancient galaxy discovered by Webb confirmed using ALMA

The Atacama Large Millimeter/submillimeter Array, an array of telescopes located in Chile, has confirmed the age of a very distant galaxy using oxygen.
Georgina Torbet
The James Webb Space Telescope.

One of James Webb’s four instruments is offline following error

The James Webb Space Telescope is experiencing an issue with one of its instruments, the Near Infrared Imager and Slitless Spectrograph or NIRISS.
Georgina Torbet
Illustration of a planet on a black background. The planet is large and rocky. Roughly two-thirds of the planet is lit, while the rest is in shadow.

How James Webb peers into the atmospheres of far-off exoplanets

The James Webb Space Telescope recently detected its first exoplanet, but its real promise is in studying exoplanet atmospheres.
Georgina Torbet
NGC 346, shown here in this image from NASA’s James Webb Space Telescope Near-Infrared Camera (NIRCam), is a dynamic star cluster that lies within a nebula 200,000 light years away. Webb reveals the presence of many more building blocks than previously expected, not only for stars, but also planets, in the form of clouds packed with dust and hydrogen. 

James Webb captures stunning image of star formation in nearby galaxy

A stunning new image from James Webb is also leading astronomers to rethink their theories about how stars and planets could have formed in the early universe.
Georgina Torbet
The power of JWST to map galaxies at high resolution and at longer infrared wavelengths than Hubble allows it look through dust and unveil the underlying structure and mass of distant galaxies. This can be seen in these two images of the galaxy EGS23205, seen as it was about 11 billion years ago. In the HST image (left, taken in the near-infrared filter), the galaxy is little more than a disk-shaped smudge obscured by dust and impacted by the glare of young stars, but in the corresponding JWST mid-infrared image (taken this past summer), it’s a beautiful spiral galaxy with a clear stellar bar.

James Webb spots early galaxies similar to our Milky Way

Astronomers have used Webb to discover some of the earliest galaxies with a feature called stellar bars, making them similar to our Milky Way.
Georgina Torbet
This image is dominated by NGC 7469, a luminous, face-on spiral galaxy approximately 90 000 light-years in diameter that lies roughly 220 million light-years from Earth in the constellation Pegasus. Its companion galaxy IC 5283 is partly visible in the lower left portion of this image.

James Webb image shows the bright glowing heart of a galaxy

Astronomers recently shared a stunning new image of space from the James Webb Space Telescope, showing a galaxy with an unusually bright heart.
Georgina Torbet
A swath of sky measuring 2% of the area covered by the full moon was imaged with Webb’s Near-Infrared Camera (NIRCam) in eight filters, and with Hubble’s Advanced Camera for Surveys (ACS) and Wide-Field Camera 3 (WFC3) in three filters that together span the 0.25 to 5 micron wavelength range. This image represents a portion of the full PEARLS field, which will be about four times larger.

James Webb survey image shows a field of shining galaxies

Researchers from a Webb survey called PEARLS recently released their first results showing an area of the sky called the North Ecliptic Pole.
Georgina Torbet
This image taken by the James Webb Space Telescope highlights the region of study by the JWST Advanced Deep Extragalactic Survey (JADES). This area is in and around the Hubble Space Telescope’s Ultra Deep Field. Scientists used Webb’s NIRCam instrument to observe the field in nine different infrared wavelength ranges. From these images, the team searched for faint galaxies that are visible in the infrared but whose spectra abruptly cut off at a critical wavelength. They conducted additional observations (not shown here) with Webb’s NIRSpec instrument to measure each galaxy’s redshift and reveal the properties of the gas and stars in these galaxies. In this image blue represents light at 1.15 microns (115W), green is 2.0 microns (200W), and red is 4.44 microns (444W)

James Webb uses spectroscopy to identify earliest galaxies to date

New research provides confirmation that the James Webb Space Telescope has identified some of the oldest galaxies yet, estimated to be 13.4 billion years old.
Georgina Torbet
By combining images of the iconic Pillars of Creation from two cameras aboard the NASA/ESA/CSA James Webb Space Telescope, the Universe has been framed in its infrared glory. Webb’s near-infrared image was fused with its mid-infrared image, setting this star-forming region ablaze with new details.

See Webb’s most beautiful image yet of the Pillars of Creation

Two of James Webb's images of the Pillars of Creation have been combined into one, showing a gorgeous new view of the famous structure.
Georgina Torbet
Near-infrared Images of Saturn’s moon Titan, as seen by JWST on November 4, 2022 (left), followed by Keck Observatory’s NIRC2 instrument paired with adaptive optics on November 6, 2022 (middle) and November 7, 2022 (right).

James Webb and Keck Observatory see clouds on Saturn’s moon Titan

Researchers using James Webb the Keck Observatory have teamed up to study Saturn's largest moon, Titan, and observe the way that clouds move around it.
Georgina Torbet
New observations of WASP-39b with the JWST have provided a clearer picture of the exoplanet, showing the presence of sodium, potassium, water, carbon dioxide, carbon monoxide and sulfur dioxide in the planet's atmosphere. This artist's illustration also displays newly detected patches of clouds scattered across the planet.

James Webb gets most detailed look yet at an exoplanet’s atmosphere

Astronomers have used the James Webb Space Telescope to get the most in-depth look yet at the atmosphere of planet WASP-39 b.
Georgina Torbet
Two of the most distant galaxies seen to date are captured in these Webb pictures 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. 

James Webb spots two of the earliest galaxies ever seen

The James Webb Space Telescope has discovered two of the earliest galaxies ever seen in the universe, and they are much brighter than expected.
Georgina Torbet
The protostar L1527, shown in this image from the NASA/ESA/CSA James Webb Space Telescope.

See a new star being born in stunning James Webb image

The James Webb Space Telescope has captured a stunning image of the birth of a new star.
Georgina Torbet
This artist’s conception shows the fully unfolded James Webb Space Telescope in space.

How NASA is dealing with micrometeoroids threatening James Webb

Earlier this year, James Webb Space Telescope suffered a micrometeoroid impact. Now, NASA has shared its plan to deal with such impacts as Webb ages.
Georgina Torbet
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