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James Webb Space Telescope
Webb is the premier observatory of the next decade, serving thousands of astronomers worldwide. It studies every phase in the history of our Universe.
Active Mission
Featured Content
Latest News
Latest Images
Webb studies every phase in the history of our Universe, ranging from the first luminous glows after the Big Bang, to the formation of solar systems capable of supporting life on planets like Earth, to the evolution of our own Solar System. Webb launched on Dec. 25th 2021. It does not orbit around the Earth like the Hubble Space Telescope, it orbits the Sun 1.5 million kilometers (1 million miles) away from the Earth at what is called the second Lagrange point or L2.
Mission Type
Astrophysics
Partners
NASA/ESA/CSA
Launch
Dec 25, 2021
Arrival at L2
Jan 24, 2022
Key Facts
Fact Sheet
Premiere Telescope of Next Decade
extending the tantalizing discoveries of the Hubble Space Telescope.
Folding Design
So big it has to fold origami-style to fit in the rocket and will unfold like a “Transformer” in space.
1.5 Million km
Webb orbits the Sun 1.5 million kilometers from the Earth. (Hubble orbits 560 kilometers above the Earth.)
SPF 1 Million
Webb has a 5-layer sunshield that protects the telescope from the infrared radiation of the Sun, Earth, and Moon; like having sun protection of SPF 1 million.
Unprecedented Sensitivity
iIt will peer back in time over 13.5 billion years to see the first galaxies born after the Big Bang.in the ISS.
Featured Image
Astronomers used NASA’s James Webb Space Telescope to directly image 29 Cygni b, which weighs 15 times Jupiter. They found evidence for heavy chemical elements like carbon and oxygen, which strongly suggests it formed like a planet by accretion within a protoplanetary disk.
Image: NASA, ESA, CSA, William Balmer (JHU, STScI), Laurent Pueyo (STScI); Image Processing: Alyssa Pagan (STScI)
More Webb Images
Featured Story
NASA’s Webb Redefines Dividing Line Between Planets, Stars
Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump…
Read the Story
Latest News
The feed below is
a mix of Webb Science Releases and associated images/videos, Webb Science Blogs, Webb press releases and articles tagged with "James Webb Space Telescope"
. To filter out everything except the Webb Science Releases (or Science Blogs) - simply select that filter check box. Webb Science Releases, images, videos and Webb's Science Blogs can also be filtered by
Webb's four primary science themes
Filter, Search and Sort Notes:
Initial filtered results displayed below show articles that match all of the filters listed for all dates. Once one or more article type filters checked (Images, Science Blogs, Science Releases, Videos), only articles that match the checked filters (logical ORd) are displayed within the date range if selected. When a Webb-Theme is selected, that filters a subset of the article types selected. The "Search Latest Content" box
searches for the terms entered within the subset of filtered articles.
You can also
sort the results by date
in descending (newest first) or ascending (oldest first).
Filters
What Webb Learns from Light
NASA's James Webb Space Telescope collects far more than stunning images — about 75% of its observations produce a powerful…
Apr 22, 2026
Video
Saturn Mini Poster
Download and print a mini poster featuring an image of Saturn captured in 2024 by NASA's James Webb Space Telescope.…
Apr 16, 2026
Image
NASA’s Webb Redefines Dividing Line Between Planets, Stars
Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump…
Apr 14, 2026
Article
Exoplanet 29 Cygni b (NIRCam Image)
Astronomers used NASA’s James Webb Space Telescope to directly image 29 Cygni b, which weighs 15 times Jupiter. They found…
Apr 14, 2026
Image
Exoplanet 29 Cygni b (Artist’s Concept)
Exoplanet 29 Cygni b, seen in this artist’s concept, is a gas giant weighing about 15 times the mass of…
Apr 14, 2026
Image
NASA Webb, Hubble Share Most Comprehensive View of Saturn to Date
NASA’s James Webb Space Telescope and Hubble Space Telescope have teamed up to capture new views of Saturn, revealing the…
Mar 25, 2026
Article
Saturn (Webb NIRCam and Hubble WFC3/UVIS)
Complementary views of Saturn from NASA’s James Webb Space Telescope and Hubble Space Telescope show a dynamic planet with atmospheric…
Mar 25, 2026
Image
Saturn (Webb NIRCam Image)
Captured Nov. 29, 2024 by NASA’s James Webb Space Telescope, this infrared view of Saturn shows its glowing icy rings…
Mar 25, 2026
Image
Saturn (WFC3/UVIS)
Captured Aug. 22, 2024 by NASA’s Hubble Space Telescope, this visible-light view of Saturn reveals the planet’s softly banded atmosphere…
Mar 25, 2026
Image
Saturn (Webb NIRCam Wide Image)
A wider view of Saturn from NASA’s James Webb Space Telescope shows six of Saturn’s larger moons, including the largest,…
Mar 25, 2026
Image
Saturn (Webb NIRCam and Hubble WFC3/UVIS Compass Image)
These images of Saturn, captured by NASA’s James Webb and Hubble Spaces Telescopes, shows compass arrows, scale bar, and color…
Mar 25, 2026
Image
NASA-JAXA’s XRISM Telescope Clocks Hot Wind of Galaxy M82
For the first time, astronomers have directly measured the speed of superheated gas billowing from a cauldron of stellar activity…
Mar 25, 2026
Article
Webb's Blog
This feed only contains articles from Webb's Blog which offers an insider's point of view covering a variety of topics. The feed below supports a deeper dive into
Webb's Blog which contains early release science (not yet peer reviewed) as well as blogs on Webb Mission Operations and Webb Engineering posts
- you can also filter Webb Science Blogs by
Webb's four primary science themes
Filters
How NASA’s Webb Helped Rule Out Asteroid’s Chance of 2032 Lunar Impact
Editor’s Note: This post highlights data from Webb science in progress, which has not yet been through the peer-review process.…
Mar 6, 2026
Blog
New NASA Asteroid Observations Eliminate Chance of 2032 Lunar Impact
Using data from NASA’s James Webb Space Telescope observations collected on Feb. 18 and 26, experts from NASA’s Center for…
Mar 5, 2026
Blog
NASA’s Webb Space Telescope Observes Interstellar Comet
NASA’s James Webb Space Telescope observed interstellar comet 3I/ATLAS Aug. 6, with its Near-Infrared Spectrograph instrument. The research team has…
Aug 25, 2025
Blog
New Moon Discovered Orbiting Uranus Using NASA’s Webb Telescope
Editor’s Note: This post highlights data from Webb science in progress, which has not yet been through the peer-review process.…
Aug 19, 2025
Blog
NASA’s Webb Finds Possible ‘Direct Collapse’ Black Hole
Editor’s Note: This post highlights a combination of peer-reviewed results and data from Webb science in progress, which has not…
Jul 15, 2025
Blog
NASA’s Webb Observations Update Asteroid 2024 YR4’s Lunar Impact Odds
While asteroid 2024 YR4 is currently too distant to detect with telescopes from Earth, NASA’s James Webb Space Telescope collected one…
Jun 5, 2025
Blog
How NASA’s Webb Telescope Supports Our Search for Life Beyond Earth
This artist’s concept shows what exoplanet K2-18 b could look like based on science data. K2-18 b, an exoplanet 8.6…
Apr 18, 2025
Blog
NASA’s Webb Finds Asteroid 2024 YR4 Is Building-Sized
Editor’s Note: This post highlights data from Webb science in progress, which has not yet been through the peer-review process. These…
Apr 2, 2025
Blog
NASA’s Webb Reveals the Ancient Surfaces of Trans-Neptunian Objects
Trans-Neptunian objects (TNOs) are icy bodies ranging in size from Pluto and Eris (dwarf planets with diameters of about 1,500…
Feb 12, 2025
Blog
Monitoring Webb’s Mirrors for Optimal Optics
NASA’s James Webb Space Telescope is the largest and most powerful telescope ever launched to space. Its mirror is composed…
Nov 8, 2024
Blog
Webb Researchers Discover Lensed Supernova, Confirm Hubble Tension
Editor’s Note: This post highlights data from Webb science in progress, which has not yet been through the peer-review process. Measuring…
Oct 1, 2024
Blog
Reconnaissance of Potentially Habitable Worlds with NASA’s Webb
Exoplanets are common in our galaxy, and some even orbit in the so-called habitable zone of their star. NASA’s James…
Jun 5, 2024
Blog
Latest 2026 Images
The image below is a SLIDESHOW. Hover over the image to see the image title and controls. Click the image to go to a detail page with more info and the ability to download the image at various resolutions (click the downward arrow icon in lower right corner).
View Slideshow as Thumbnail Gallery (new tab)
More Webb Images
Science Images By Year
Webb Science image slideshows by year.
First Images
Webb's first science images released in July of 2022 just after commissioning was completed.
More Webb Images
Images from Webb's testing and commissioning, road to launch from the US to ESA's launch facility in French Guiana, Webb's launch, Webb's development and more.
About Webb Images
The where, why and how of Webb images.
Search Webb Science Images
Search and filter Webb science images and image products using keywords, date ranges, astronomoical objects and more.
Webb Observation tracking TOOL
What is Webb Observing?
See current, upcoming and recent past observations scientists are making with the Webb Space Telescope. View details about each observation's science focus areas, the instruments used and more.
View the Tool
About
The Webb Mission
Webb is the premier observatory of the next decade, serving thousands of astronomers worldwide. It studies every phase in the history of our Universe, ranging from the first luminous glows after the Big Bang, to the formation of solar systems capable of supporting life on planets like Earth, to the evolution of our own Solar System.
This is a photo of one of the James Webb Space Telescope's primary mirror segments coated with gold by Quantum Coating Incorporated. It's NOT a flight segment, it's the engineering design unit. The photo was taken at BATC by Drew Noel.
Photo by Drew Noel
About
Webb's Science Goals
The James Webb Space Telescope is a giant leap forward in our quest to understand the Universe and our origins. Webb is examining every phase of cosmic history: from the first luminous glows after the Big Bang to the formation of galaxies, stars, and planets to the evolution of our own solar system. Learn about the 4 main science themes for Webb.
NASA’s Webb Captures Dying Star’s Final ‘Performance’ in Fine Detail
NASA, ESA, CSA, and STScI
About
The Spacecraft
The Webb Space Telescope is the largest, most powerful and most complex telescope ever launched into space . It's design and development history stretches back before the Hubble Space Telescope was launched.  Learn about the design, the major components and subsystems of Webb and see Webb in 3d in a 3d Solar System.
About
The International Webb Team
Webb is for the world, and from the world. Thousands of skilled scientists, engineers and technicians from 14 countries (and more than  29 U.S. states, and Washington, D.C.) contributed to the design, build, test, integration, launch, commissioning and operations of Webb. It is a joint NASA/ESA/CSA mission. Assembly and testing of the mirror and instruments occurred at NASA Goddard (GSFC).
A full disk view of the earth from GOES 16, GOES East on the vernal Equinox.
NOAA / NASA
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