WATCH: Two views of a colorful array of massive stars and glowing cosmic dust in the Sagittarius B2 molecular cloud, the most massive and active star-forming region in our Milky Way galaxy. 🔭 🧪

PRESS RELEASE DAY! Could not be prouder of this result and so happy that it's now out!!! 🤩✨ Thanks to the team at @stsci.edu for the wonderful write-up and image!

In the event of a U.S. government shutdown, STScI will extend the James Webb Space Telescope Cycle 5 proposal submission deadline for affected scientists. Details: https://www.stsci.edu/contents/news/jwst/2025/jwst-cycle-5-deadline-extension-in-case-of-government-shutdown #NASAWebb 🔭 🧪 ☄️

#NASAWebb has found the first direct evidence of potential moon formation around a giant exoplanet. The discovery is shedding light on how such systems evolve and why moons could be potentially habitable worlds: https://bit.ly/46xGodN 🔭 🧪

STScI's Alyssa Pagan says that there is a methodology for dealing with the wider electromagnetic spectrum: “In terms of assigning color, we generally do some standard chromatic ordering because it has the most scientific value and meaning in it, and usually also gives you aesthetic images.” 🔭 🧪

#NASAWebb provides high-resolution details of Herbig-Haro 49/50—an outflow from a nearby still-forming star and background galaxies. Webb reveals the fuzzy object at the tip of the outflow in the Spitzer image is actually a distant spiral galaxy: https://bit.ly/4mXuQHW 🔭 🧪

Take us out to the ballgame! Recently, Space Telescope Science staff took a break from looking at the stars to look at the Baltimore Orioles at play. Project manager Yong Taing was invited onto the field to represent the large group as a “Heavy Hitter.” Credit: STScI.

This galaxy has a megamaser! It acts like an astronomical laser, with “beams” of microwaves (not visible light) sent out by the bright yellow nuclei. Hubble observed the galaxy, IRAS 16399-0937, in 2016. It's 370 million light-years away. 🔭 🧪 Credit: ESA, NASA; Judy Schmidt.

Sagittarius B2 is the Milky Way galaxy’s most massive and active star forming cloud, producing half of the stars created in the galactic center region despite having only 10 percent of the area’s star-making material. (1/4) 🧵 🔭 🧪

The Sagittarius B2 star-forming region in the center of our Milky Way looks dramatically different when seen in the near-infrared (more stars) versus mid-infrared (more gas and cosmic dust) light captured by #NASAWebb: https://bit.ly/48pUVLe 🔭 🧪

This visualization of the Scorpius constellation in three dimensions reveals how the stars in the sky become distorted when viewed from a new perspective. 🔭 🧪

Art meets astronomy! Check out NASA’s Universe of Learning’s new Cosmic Canvas program guides for informal educators—no science background needed. Explore NASA science through creative activities! Get started at: https://t.co/RTaQhsYCt9 🔭 🧪

STScI staff took part in this year’s “Astronomy Festival on the National Mall” on Saturday, Sept. 20, in Washington, D.C. They answered questions about new astronomical discoveries by the James Webb Space Telescope and careers in science. Credit: STScI

Did you miss last week's Deep Space Dialogues with STScI's Nestor Espinoza, as he chatted about atmospheres of distant exoplanets? Watch it now and learn about how #NASAWebb is dramatically changing our understanding of planetary systems in the cosmos. 🔭 🧪

This zoom-in video shows the location of the young star cluster Pismis 24 on the sky, where it transitions to the stunning image captured by #NASAWebb. Credit: Alyssa Pagan (STScI), NASA, ESA CSA, STScI. 🔭 🧪

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 🔭 🧪

See the size of two protostellar jets imaged by #NASAWebb. The first is an extremely large jet located in Sh2-284. The outflows from the massive central protostar span 8 light-years across. In comparison, a jet the nearby region of Rho Ophiuchi is one light-year long. Credit: NASA/ESA/CSA/STScI 🔭 🧪

A nearby, burned-out star is eating a fragment of a Pluto-like object. Only Hubble could identify that this is taking place with its unique ultraviolet vision: https://bit.ly/4mZk6sx 🔭 🧪

This Hubble image shows interacting galaxies AM 1054-325. The clusters of stars born from the galaxy merger appear like a string of pearls. Formations like these were common in the early universe. Credit: NASA, ESA, STScI, Jayanne English (University of Manitoba). 🔭 🧪

TOMORROW (Sept. 17, 7 p.m. ET): STScI's Dr. Néstor Espinoza will explore some of the most exciting findings #NASAWebb is unveiling about the atmospheres of distant exoplanets. 🔭 🧪 https://youtube.com/live/i466qvWBQ1o?feature=share

Want Hubble or #NASAWebb to observe an object you’re studying in space? The Astronomer's Proposal Tool is used to write, validate, and submit proposals for observation time: https://bit.ly/3Uj17MY 🔭 🧪 ☄️

Spot the tiny scientific “puzzle pieces” in the Flame Nebula! In 2023, scientists used #NASAWebb’s infrared instruments to find several low-mass objects to better understand the lowest mass limit of brown dwarfs or “failed stars.” Credit: NASA, ESA, CSA, STScI. 🔭 🧪

We’re seeing double: two interacting galaxies imaged by #Hubble and #NASAWebb. Hubble shows obscuring brown dust and blue star-filled regions, while Webb shows glowing cold dust as white material and pink stars still embedded in dust: https://bit.ly/3F72M4a 🔭 🧪

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NASA’s Universe of Learning aims to put everything learners need to begin at your fingertips. We are all immersed in exploring, researching, and communicating about space—and our expertise allow us to create innovative projects to engage learners: https://www.universe-of-learning.org/ 🔭 🧪

Newly captured by #NASAWebb: a cosmic lightsaber! The gigantic, rare, eight-light-year-long jet erupting from a baby star 15,000 light-years away is reshaping our understanding of how massive stars form: https://bit.ly/4p6GbXF 🔭 🧪

This scientific visualization takes viewers on a journey to a glittering young star cluster called Pismis 24. #NASAWebb captured this fantastical scene in the heart of the Lobster Nebula, approximately 5,500 light-years from Earth. 🔭 🧪 Credit: NASA, ESA, CSA, STScI.

🔭 🧪 Seven Earth-sized worlds orbit the star TRAPPIST-1, but it is much more volatile than our sun. Scientists think the system’s fourth planet is the best candidate for maintaining an atmosphere and a habitable surface: https://bit.ly/47Pt4nh

🔭 🧪 Seven Earth-sized worlds orbit the star TRAPPIST-1, but it is much more volatile than our sun. Scientists think the system’s fourth planet is the best candidate for maintaining an atmosphere and a habitable surface: https://bit.ly/47Pt4nh

This scientific visualization takes viewers on a journey to a glittering young star cluster called Pismis 24. #NASAWebb captured this fantastical scene in the heart of the Lobster Nebula, approximately 5,500 light-years from Earth. 🔭 🧪

Two takes on the Eagle Nebula by Hubble and #NASAWebb. Hubble shows dark brown pillars of gas and dust in visible light, while Webb’s infrared view is able to see through the dust to reveal many still-forming stars: https://bit.ly/43ra9N0 🔭 🧪

The American Astronomical Society celebrated the work of 12 astronomers who formed the 2024–2025 cohort of AAS Harlow Shapley Visiting Lecturers, including Dr. Quyen Hart, project scientist and science communicator at STScI. 🔭 🧪

STScI's Dr. Néstor Espinoza will explore some of the most exciting findings #NASAWebb is unveiling about the atmospheres of distant exoplanets. 🔭 🧪 DATE: Wednesday, September 17, 7 p.m. ET: https://youtube.com/live/i466qvWBQ1o?feature=share

This may be my favorite JWST image so far 🤩 🔭🧪

What appears to be a craggy, starlit mountaintop kissed by wispy clouds is actually a cosmic dust-scape being eaten away by the blistering winds and ultraviolet light of nearby, massive, infant stars. What else did #NASAWebb find in Pismis 24? https://bit.ly/4mr3cmt

Brant Robertson, from the University of California—Santa Cruz, gives a lecture about finding the most distant galaxies in the universe using the James Webb Space Telescope, today at the Space Telescope Science Institute. 🔭 🧪

The NASA Hubble Fellowship Program supports promising postdoctoral scientists to pursue independent research which contributes to NASA Astrophysics. 🔭 🧪 Applications are now open: stsci.edu/stsci-resear... Credit: NASA.

This spiral galaxy, IC 4709, hosts an active supermassive black hole that is gathering matter at its core, also known as an active galactic nucleus. This process causes the core to glow in many different wavelengths of light. Credit: ESA, NASA, M. Koss, A. Barth. 🔭 🧪

STScI's Susan Reed was recently named one of the "The Top 50 Women Leaders of Baltimore for 2025" by Women We Admire! Reed is the IT Deputy Division Head of Solutions at STScI, where she has driven the delivery of robust IT solutions that support groundbreaking astronomical research.

The NASA Hubble Fellowship Program supports promising postdoctoral scientists to pursue independent research which contributes to NASA Astrophysics. 🔭 🧪 Applications are now open: stsci.edu/stsci-resear... Credit: NASA.

Néstor Espinoza, an astronomer at STScI, explains how #NASAWebb is revealing new details about exoplanets, especially rocky worlds like Earth. Catch him on the latest episode of "NASA's Curious Universe." 🔭 🧪 https://www.nasa.gov/podcasts/curious-universe/webbs-search-for-habitable-worlds/

Watch as the familiar pattern of the Scorpius constellation distorts into a whole new perspective. The opening of the sequence pans up to Scorpius in the night sky. The brightest star in the constellation, Antares, is a red supergiant known as the "heart of the Scorpion." 🔭 🧪

WATCH: #NASAWebb is advancing our understanding of exoplanets, but there are some challenges astronomers encounter when studying other worlds. Take a look! Credit: NASA, ESA, CSA, STScI, L. Hustak (STScI), D. Kirshenblat (STScI). 🔭 🧪

2 telescopes, 2 views, 1 object. Hubble’s visible-light view of the Crab Nebula supernova remnant traces ejected gas. In infrared light, #NASAWebb reveals the pulsar at the center and more. Learn about the similarities and differences: https://bit.ly/3YMzluS 🔭 🧪

What goes “bump” out in space? Why do astronomers care about these fleeting events? Astronomers gathered at STScI to discuss how they can best use the upcoming #NASARoman to advance the study of astronomical objects that change on human time scales. 🔭 🧪 https://www.youtube.com/watch?v=mg47VByOjgw

Observatories, assemble! Hubble and #NASAWebb combined forces, producing this amazing view of star clusters NGC 460 and NGC 456. Hubble captures glowing, ionized gas in blue, while Webb highlights clumps and delicate filamentary dust in red. Credit: NASA, ESA. 🔭 🧪

Technicians recently tested two major deployments for the Nancy Grace Roman Space Telescope: the Deployable Aperture Cover (DAC) and the Solar Array Sun Shield (SASS): go.nasa.gov/41X95PN #NASARoman 🔭 🧪

What is this? An open star cluster? A galaxy? This is Andromeda III, a dwarf galaxy that orbits the far more massive Andromeda galaxy, our closest neighboring galaxy, in a Hubble image. Dwarf galaxies can go on to merge into the larger galaxies they orbit. Credit: NASA, ESA. 🔭 🧪

Descubre cómo las y los astrónomos leen los espectros para determinar la temperatura de estrellas lejanas. https://youtu.be/keIPOqSYgMs 🔭 🧪

Discover how astronomers read spectra to determine the temperature of distant stars: https://youtu.be/VsS5FD5CwlE #Spectroscopy 🔭 🧪