Tag Archive for 'James Webb Space Telescope'

The left panel shows a three-color composite mosaic of NGC 346 combining Webb’s F277W (blue), F335M (green) and F444W (red) filters. The region is rich in structures of knots, arcs and filaments. Areas of bright pink and/or red emission are associated with clumpy star formation. The spatially resolved PAH emission excited by ultraviolet photons in green is brightest in regions corresponding to the edges of dense material, characteristic of a photodissociation region. Massive stars, stars belonging to the BS90 cluster (circled in green) and the Small Magellanic Cloud field population are also visible. The right panel shows a mosaic image from the F335M filter showing four different populations of stars: pre-main-sequence stars (blue circles), young stellar objects with Paα (orange diamonds), young stellar objects without Paα (red squares) and stars matched with the HST-PMS catalogue (purple stars). Image credit: Jones et al., doi: 10.1038/s41550-023-01945-7.

Webb Detects Planetary Ingredients in NGC 346

Apr 25, 2023 by Natali Anderson

Located in the Small Magellanic Cloud at a distance of roughly 200,000 light-years, NGC 346 is a prominent young cluster — roughly 3 million years...

$This image, captured by Webb’s Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI), shows Arp 220, a duo of colliding galaxies with merging cores; the brilliant light from the star-formation surrounding these cores creates diffraction spikes. Image credit: NASA / ESA / CSA / K. Pontoppidan, STScI / A. Pagan, STScI.$

Webb Sees Ultraluminous Galaxy Collision: Arp 220

Apr 18, 2023 by News Staff

Arp 220 is the result of a collision between two spiral galaxies; the enormous object glows brightest in infrared light, making it an ideal target for...

Color-composite image of the galaxy cluster RX J2129.6+0005; green circles indicate three lensed images of the dwarf starburst galaxy RX J2129-z95. Image credit: Williams et al., doi: 10.1126/science.adf5307.

Webb Finds Tiny Star-Forming Galaxy in Early Universe

Apr 13, 2023 by Enrico de Lazaro

The newly-discovered galaxy, named RX J2129-z95, appears as three images due to the gravitational lensing of the foreground galaxy cluster RX J2129.6+0005....

This Webb image shows Uranus and six of its 27 known moons (most of which are too small and faint to be seen in this short exposure). Image credit: NASA / ESA / CSA / STScI / J. DePasquale, STScI.

Webb Captures Stunning Images of Uranus and Its Moons

Apr 10, 2023 by News Staff

New images from the NASA/ESA/CSA James Webb Space Telescope show the ice giant Uranus, its faint rings and several moons. This image of Uranus, captured...

To the lower right of this Webb image is the lensing cluster SDSS J1226+2149 with a very large and bright elliptical galaxy at its center; thin, reddish, stretched-out arcs surround it; one arc is thick and much brighter; another red galaxy is large and warped, just next to the cluster core. Image credit: NASA / ESA / CSA / Webb / J. Rigby.

Webb Spots Cosmic Seahorse

Apr 5, 2023 by News Staff

The lensing galaxy cluster SDSS J1226+2149 has magnified distant galaxies, warping their shapes and creating the bright smears of light spread throughout...

The TRAPPIST-1 system is remarkable for its seven planets that are similar in size, mass, density, and stellar heating to the rocky planets Venus, Earth, and Mars in our own Solar System. This illustration shows what the rocky planet TRAPPIST-1b could look like based on the new study. Image credit: NASA / ESA / CSA / J. Olmsted, STScI.

Webb Measures Temperature of TRAPPIST-1b

Mar 28, 2023 by News Staff

The dayside of TRAPPIST-1b, the innermost planet in the seven-planet system TRAPPIST-1, has a temperature of about 227 degrees Celsius (441 degrees Fahrenheit),...

$This image shows WR 124, a star located approximately 15,000 light-years away in the constellation of Sagitta. The star displays the characteristic diffraction spikes of Webb’s Near-infrared Camera (NIRCam), caused by the physical structure of the telescope itself. NIRCam effectively balances the brightness of the star with the fainter gas and dust surrounding it, while Webb’s Mid-Infrared Instrument (MIRI) reveals the nebula’s structure. Image credit: NASA / ESA / CSA / STScI / Webb ERO Production Team.$

Webb Captures Extremely Luminous and Hot Wolf-Rayet Star

Mar 15, 2023 by News Staff

Wolf-Rayet stars are in the process of casting off their outer layers, resulting in their characteristic halos of gas and dust. The new Webb images of...

The first epoch of COSMOS-Web NIRCam observations obtained on January 5 and 6, 2023, including the F115W, F150W, F277W, and F444W filters as a color composite. Image credit: COSMOS-Web / Casey et al. / RIT / UT Austin / IAP / CANDIDE.

New Webb Images Offer Treasure Trove of Early Galaxies

Mar 13, 2023 by News Staff

Astronomers from the COSMOS-Web program released mosaic images taken in early January 2023 by the Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument...

This Webb image shows the massive galaxy cluster RX J2129.6+0005; due to gravitational lensing, this observation contains three different images of a distant galaxy that hosted the Type Ia supernova event AT 2022riv. Image credit: NASA / ESA / CSA / Webb / P. Kelly.

Webb Sees Three Images of Same Supernova-Hosting Galaxy

Mar 10, 2023 by Enrico de Lazaro

Light from the distant supernova-hosting galaxy was gravitationally lensed by the foreground galaxy cluster RX J2129.6+0005 (RX J2129 for short). This...

SPT0418-47 is gravitationally lensed by a foreground galaxy, appearing in the sky as a near-perfect ring of light -- a so-called Einstein ring. Image credit: ALMA / ESO / NAOJ / NRAO / Rizzo et al.

Dusty, Chemically Mature Galaxy Spotted in Early Universe

Feb 28, 2023 by News Staff

The newly-discovered galaxy, SPT0418-SE, and its much larger companion, SPT0418-47, reside in a massive dark-matter halo with yet-to-be-discovered neighbors,...

This Webb image shows NGC 7496, a barred spiral galaxy some 24 million light-years away in the constellation of Grus. Image credit: NASA / ESA / CSA / Webb / Judy Schmidt.

Webb Focuses on Polycyclic Aromatic Hydrocarbons in Nearby Galaxies

Feb 16, 2023 by News Staff

Webb observations of polycyclic aromatic hydrocarbon emission provide some of the deepest and highest resolution views of the cold interstellar medium...

An artist’s impression of our Milky Way Galaxy in its youth. The Sparkler galaxy provides a snap-shot of an infant Milky Way as it accretes mass over cosmic time. Image credit: James Josephides, Swinburne University.

Astornomers Spot Progenitor of Milky Way-Like Galaxy in Early Universe

Feb 6, 2023 by News Staff

We are seeing the ‘Sparkler’ galaxy from 9.1 billion years ago, some 4 billion years after the Big Bang. An artist’s impression of our Milky Way...

An artist’s impression of LHS 475b and its parent star. Image credit: NASA / ESA / CSA / Leah Hustak, STScI.

Webb Confirms Earth-Sized Planet around LHS 475

Jan 12, 2023 by Natali Anderson

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have validated the discovery of a warm, 0.99 Earth-radius exoplanet interior to the habitable...

A trio of faint galaxies (circled) captured in the Webb’s deep image of the galaxy cluster SMACS J0723.3-7327 exhibit properties remarkably similar to rare, small galaxies called green peas found much closer to home. Image credit: NASA / ESA / CSA / STScI.

Webb Finds Green Pea Galaxies in Early Universe

Jan 10, 2023 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected three high-redshift galaxies with remarkable similarities to ‘green pea’...

This PEARLS image shows early galaxies in the North Ecliptic Pole; callouts are used to highlight three specific galaxies. Image credit: NASA / ESA / CSA / A. Pagan, STScI / R. Jansen, ASU.

Webb Focuses on North Ecliptic Pole

Dec 27, 2022 by News Staff

This new image, captured by the NASA/ESA/CSA James Webb Space Telescope as part of the Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS)...

This Webb image shows the Cosmic Cliffs, a region at the edge of a gigantic, gaseous cavity within the stellar nursery NGC 3324. The image is divided horizontally by an undulating line between a orange-burgundy cloudscape forming a nebula along the bottom portion and a comparatively blue upper portion. Image credit: NASA / ESA / CSA / STScI / J. DePasquale, STScI.

Webb Reveals Protostars and Energetic Jets in ‘Cosmic Cliffs’

Dec 20, 2022 by Enrico de Lazaro

Using the images from the NASA/ESA/CSA James Webb Space Telescope, astronomers have discovered 24 previously shrouded outflows from newborn stars in the...

This Webb image shows the Pillars of Creation, a small star-forming region some 6,500 light-years away in the constellation of Serpens. Image credit: NASA / ESA / CSA / STScI / J. DePasquale, STScI / A. Pagan, STScI / A. M. Koekemoer, STScI.

Webb Team Releases Composite Image of Pillars of Creation

Dec 5, 2022 by Enrico de Lazaro

Astronomers have combined Webb’s near-infrared image with the mid-infrared image, setting the iconic Pillars of Creation ablaze with new details. This...

This Webb image shows the center of Messier 74. Image credit: NASA / ESA / CSA / Webb / Hoyer et al., arXiv: 2211.13997.

Webb Focuses on Nuclear Star Cluster of Messier 74

Nov 30, 2022 by Natali Anderson

Using new images from the NASA/ESA/CSA James Webb Space Telescope as well as archival data from the NASA/ESA Hubble Space Telescope, astronomers have studied...

GLASS-z12 is captured in this Webb image of the outer regions of the galaxy cluster Abell 2744. Image credit: NASA / ESA / CSA / T. Treu, UCLA.

Webb Discovers Two Remarkably Luminous Galaxies in Early Universe

Nov 17, 2022 by News Staff

The two newfound galaxies, dubbed GLASS-z12 and GLASS-z10, existed approximately 350 and 450 million years after the Big Bang. GLASS-z12 (redshift of 12.5)...

This Webb image shows the highly-magnified red supergiant candidate Quyllur (white, central circle). Image credit: NASA / ESA / CSA / Webb / Diego et al., arXiv: 2210.06514.

Webb Spots Possible Red Supergiant Star in Early Universe

Nov 2, 2022 by Natali Anderson

Nicknamed Quyllur, the newly-detected red supergiant candidate is so far away that its light has taken 10.7 billion years to reach Earth. This Webb image...

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