#NASAWebb's
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Experience the Cosmic Cliffs like never before! #NASAWebb’s iconic image of dusty “mountains” and “valleys” is featured in a new 3D visualization from NASA’s Universe of Learning: webbtelescope.pub/4jRHIh9 🔭 🧪
May 7, 2025 at 6:02 PM
stsci.edu
Did we know that we were releasing #NASAWebb's Cat's Paw Nebula on #NationalKittenDay? Nope, it was fortuitous. 😹 🔭 🧪
stsci.edu Space Telescope Science Institute @stsci.edu · Jul 10
Hooray for three years of paw-sitively amazing #NASAWebb science! To celebrate, the telescope examined a singular “toe bean” of the Cat’s Paw Nebula, a massive star-forming region. Webb reveals gas, dust, and massive young stars: webbtelescope.pub/4khJK9T 🔭

Reply with an image of your pet’s paws! 🐾
A section of the Cat’s Paw Nebula, a local star-forming region composed of gas, dust, and young stars. Four roughly circular areas are toward the center of the frame: a small oval toward the top left, a large circle in the top center, and two ovals at bottom left and right. Each circular area has a luminous blue glow, with the top center and bottom left areas the brightest. Brown-orange filaments of dust, which vary in density, surround these four bluish patches and stretch toward the frame’s edges. Small zones, such as to the left and right of the top-center blue circular area, appear darker and seemingly vacant of stars. Toward the center are small, fiery red clumps scattered among the brown dust. Many small, yellow-white stars are spread across the scene, some with eight-pointed diffraction spikes that are characteristic of Webb. A few larger blue-white stars with diffraction spikes are scattered throughout, mostly toward the top left and bottom right.
July 10, 2025 at 7:19 PM
stsci.edu
NEWS: #NASAWebb’s first look at the prominent Phoenix galaxy cluster has proven the decades-old theory of how it forms stars at such a ferocious rate. 🔭 🧪
Webb Maps Full Picture of How Phoenix Galaxy Cluster Forms Stars
webbtelescope.pub
February 13, 2025 at 3:06 PM
stsci.edu
Let’s explore two different views of a spiral galaxy. When it comes to NGC 628, #Hubble and #NASAWebb’s images show a contrast between hot stars in visible light, and cool stars and dust in infrared light: https://bit.ly/42XwnGj 🔭 🧪
September 19, 2025 at 3:07 PM
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The video lands on the visible light image of the Circinus galaxy from Hubble, then zooms in even more to the image of the galaxy’s core from #NASAWebb's NIRISS (Near-Infrared Imager and Slitless Spectrograph) in near-infrared light: go.nasa.gov/3YG6fNh
January 13, 2026 at 8:23 PM
stsci.edu
Flip between Hubble and #NASAWebb’s views of star system FS Tau. Hubble’s visible-light image reveals baby stars surrounded by dust, while in infrared-light, Webb sees past the dust to reveal the cosmic celebration taking place: https://news.stsci.edu/4xW7CI5 🔭
July 2, 2026 at 5:28 PM
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NASA's James Webb Space Telescope on Flickr (Jun 2, 2023)

Explore the delicate dust and star clusters of NGC 5068 in this mid-infrared image from #NASAWebb's MIRI instrument.

flic.kr/p/2oECnpy
Mid-infrared image of barred spiral galaxy NGC 5068, showing dust, star clusters, and glowing bubbles of gas. Credit: ESA/Webb, NASA & CSA, J. Lee and the PHANGS-JWST Team
September 26, 2026 at 11:00 AM
stsci.edu
Recap some of #NASAWebb’s biggest early-universe discoveries (so far) with the astronomers who are doing the science. 🔭 🧪
The James Webb Space Telescope Reveals the Early Universe
YouTube video by Space Telescope Science Institute
youtu.be
March 28, 2025 at 2:00 PM
stsci.edu
EVENT: On July 21, STScI's Dr. Macarena Garcia Marin will explore #NASAWebb's record-breaking performance, scientific breakthroughs, and astonishing discoveries. We will also look ahead and ask the questions that will shape Webb's future science.
www.youtube.com
July 15, 2026 at 4:18 PM
stsci.edu
#NASAWebb's latest discovery? A tiny new moon orbiting Uranus.

This newly discovered satellite is very small—six miles (9.6 kms) in diameter—and orbits 35,000 miles (56,000 kms) from the center of Uranus. 🔭 🧪
New Moon Orbiting Uranus Found By James Webb Space Telescope #shorts
YouTube video by Space Telescope Science Institute
youtube.com
August 22, 2025 at 8:07 PM
stsci.edu
With #NASAWebb’s infrared sensitivity, astronomers can parse exoplanet atmospheres in great detail, leading to new insights. For example, Webb’s detection of carbon dioxide in system HR 8799’s planets suggests these worlds formed similarly to Jupiter and Saturn. 🔭 🧪

Credit: STScI.
October 2, 2025 at 6:17 PM
stsci.edu
To celebrate #NASAWebb's third anniversary of science observations this month, STScI staff worked on an art project. Based off Webb's primary mirrors, 18 hexagons were decorated with galaxies, nebulas and planets observed by Webb.

Do you recognize any of the Webb images in the drawings? 🔭 🧪
July 9, 2025 at 1:59 PM
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ESA/Webb (@esa.int) images (May 29, 2024)

Dwarf galaxy NGC 4449, known for its intense starburst activity, is featured in this image from #NASAWebb's NIRCam.

esawebb.org/images/potm2405d/
A close view of the dwarf galaxy NGC 4449, highlighting bright star-forming regions and older stars. Credit: ESA/Webb, NASA & CSA, A. Adamo (Stockholm University) and the FEAST JWST team
September 26, 2026 at 9:00 PM
stsci.edu
Watch our view of the Serpens Nebula transform as it’s observed in different wavelengths of light and different resolutions: Hubble’s visible light view, Spitzer’s infrared look, and #NASAWebb’s crisp near-infrared image: webbtelescope.pub/3Vmca9d 🔭 🧪
June 20, 2024 at 3:08 PM
stsci.edu
#NASAWebb’s near-infrared observation of M82 is the most recent addition to overall data on this starburst galaxy. Hubble is one observatory that has previously looked at M82, detailing the gas and dust structure seen in visible light.

Credit: NASA, ESA, CSA, STScI, A. Pagan (STScI).
June 24, 2026 at 4:39 PM
stsci.edu
The #NASAWebb’s stunning images of space have captured our imagination, but they're only part of the story. About 75% of Webb's observations produce a powerful type of data called spectra. 🔭 🧪
What Webb Learns from Light
YouTube video by Space Telescope Science Institute
youtu.be
April 24, 2026 at 2:53 PM
stsci.edu
This young star cluster shines like a kaleidoscope thanks to #NASAWebb’s near- and mid-infrared instruments. NGC 602 is in our neighboring dwarf galaxy, the Small Magellanic Cloud. Credit: ESA/Webb, NASA, CSA. 🔭 🧪
A star cluster shown inside a large nebula that has many colors of gas and dust. The material forms a circle of dark ridges and peaks surrounding the cluster, lit on the inner side, while layers of diffuse, translucent clouds blanket over them. Around and within the gas, a huge number of distant galaxies can be seen, some quite large, as well as a few stars nearer to us which are very large and bright. In the corners, the background of space is black.
December 3, 2024 at 3:01 PM
stsci.edu
TODAY at 4 p.m.: STScI's Dr. Macarena Garcia Marin will explore #NASAWebb's record-breaking performance, scientific breakthroughs, and astonishing discoveries. We will also look ahead and ask the questions that will shape Webb's future science.
www.youtube.com
July 21, 2026 at 3:48 PM
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ESA/Webb (@esa.int) images (Oct 2, 2024)

Centaur 29P/Schwassmann-Wachmann 1 shows outgassing jets of carbon dioxide and carbon monoxide, studied with #NASAWebb's NIRSpec.

esawebb.org/images/centaur29p/
A detailed view of Centaur 29P/Schwassmann-Wachmann 1 showing its outgassing jets of carbon dioxide and carbon monoxide. Credit: NASA, ESA, CSA, L. Hustak (STScI), S. Faggi (NASA-GSFC, American University)
September 27, 2026 at 3:00 AM
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ESA/Webb (@esa.int) images (Dec 15, 2022)

Discover hidden jets and outflows from young stars in the Cosmic Cliffs of NGC 3324, revealed by #NASAWebb's NIRCam.

esawebb.org/images/carinanebula2/
An image of the Cosmic Cliffs in NGC 3324 showing jets and outflows from young stars, captured in near-infrared wavelengths by Webb’s NIRCam. Credit: NASA, ESA, CSA, and STScI, J. DePasquale (STScI)
September 25, 2026 at 1:00 AM
stsci.edu
Read more about how #NASAWebb’s imaging of NGC 6072 opens the door to studying how the planetary nebulae with more complex shapes contribute enriched material that helps form new stars and planetary systems. (8/8) 🔭 🧪
NASA's Webb Traces Details of Complex Planetary Nebula
webbtelescope.org
July 31, 2025 at 6:05 PM
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Throwback post: With the release of @NASAWebb's first amazing IR images, we want to showcase some of the great science conducted with Gemini’s GMOS-N on Stephan's Quintet, both with imaging and spectroscopy. Check out a few paper highlights in the thread!

#Astronomy
October 15, 2025 at 9:53 PM
stsci.edu
Astronomers are losing their minds over #NASAWebb’s latest images of the very brainy-looking nebula PMR 1. Its distinctive form is the result of a dying star expelling its outer layers: https://news.stsci.edu/4tVQccE 🔭 🧪
A nebula appears like a transparent bubble with a white edge, inside which are two hemispheres of orange clouds being blown out from the center, split by a dark vertical lane, giving the overall appearance of a see-through skull with a brain inside, as seen from above. A few stars appear with eight points, and small background galaxies can be seen around and through the outer bubble.
February 25, 2026 at 3:14 PM
stsci.edu
EVENT: On July 21, STScI's Dr. Macarena Garcia Marin will explore #NASAWebb's record-breaking performance, scientific breakthroughs, and astonishing discoveries. We will also look ahead and ask the questions that will shape Webb’s future science.
Into the Deep and Beyond: Webb’s First Four Years
YouTube video by Space Telescope Science Institute
www.youtube.com
July 7, 2026 at 8:04 PM
stsci.edu
Stars form in super-cold clouds of gas and dust. Gas clumps collide, and build mass, eventually collapsing to form stars.

#NASAWebb’s view of the Serpens Nebula shows a dense cluster of newly forming stars that is about 100,000 years old.

Credit: NASA, ESA, CSA, STScI. 🔭 🧪
A young star-forming region is filled with wispy orange, red, and blue layers of gas and dust. The upper left corner of the image is filled with mostly orange dust, and within that orange dust, there are several small red plumes of gas that extend from the top left to the bottom right, at the same angle. The center is filled with mostly blue gas. At the center, there is one particularly bright star that has an hourglass shadow above and below it. To the right of that is what looks a vertical eye-shaped crevice with a bright star at the center. The gas to the right of the crevice is a darker orange. Small points of light are sprinkled across the field, brightest stars in the field have extensive eight-pointed diffraction spikes.
January 27, 2025 at 4:25 PM