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  1. NASA Celebrates Edwin Hubble's Discovery of a New Universe

    January 15, 2025Release ID: 2025-001 Missions: Hubble

    Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies

    A Hubble image of the Andromeda galaxy, tilted from the bottom left to top right. The outer edges of the galaxy are blue, while the inner two-thirds is yellowish with a bright, central core. Four inset boxes form an arc along the top portion of the galaxy, each showing a bright white star in the center surrounded by other stars. Each box has a correlating date at the bottom: Dec. 17, 2020, Dec. 21, 2010, Dec. 30, 2019, and Jan. 26, 2011. The center star in the boxes appears brighter with each passing date. An arrow from galaxy’s right center spiral arm points to the boxes, indicating where the star originates in the galaxy.

  2. Newfound Galaxy Class May Indicate Early Black Hole Growth, Webb Finds

    January 14, 2025Release ID: 2025-101 Missions: Webb

    Scientists compile large sample of an unusual class of objects in an effort to connect the dots to the early universe.

    Six Webb images of little red dots are combined in a two-row mosaic. Each little red dot is centered within a square frame and lies against the black background of space. Each dot has a yellow-white circular core surrounded by a red, fuzzy ring. White text in the top left corner of each box lists the source’s name from the Webb surveys, and its redshift. From left to right, the top row reads CEERS 14448, z = 4.75; NGDEEP 4321, z = 8.92; and PRIMER-COS 10539, z = 7.48. The bottom row reads CEERS 20320, z = 5.27; JADES 9186, z = 4.99; and PRIMER-UDS 17818, z = 6.40.

  3. Webb Finds Early Galaxies Weren't Too Big for Their Britches After All

    August 26, 2024Release ID: 2024-134 Missions: Webb

    It got called the crisis in cosmology. But now astronomers can explain some surprising recent discoveries.

    Hundreds of small galaxies against the black background of space. Several white spiral galaxies are near image center. Most of the galaxies are various shades of orange and red, and many are too tiny to discern a shape. A handful of foreground stars show Webb's six diffraction spikes.

  4. Galaxies Actively Forming in Early Universe Caught Feeding on Cold Gas

    May 23, 2024Release ID: 2024-114 Missions: Webb

    Only Webb can detect and investigate these galaxies, which were forming within dense, opaque gas when the universe was only a few hundred million years old.

    Illustration is awash in bright blue gas, showing a large white spiral galaxy at center and two smaller galaxies, one to its left and one to its right.

  5. NASA's Webb, Hubble Telescopes Affirm Universe's Expansion Rate, Puzzle Persists

    March 11, 2024Release ID: 2024-108 Missions: Webb, Hubble

    Webb measurements shed new light on a decade-long mystery.

    A face-on spiral galaxy with four spiral arms that curve outward in a counterclockwise direction. The spiral arms are filled with young, blue stars and peppered with purplish star-forming regions that appear as small blobs. The middle of the galaxy is much brighter and more yellowish, and has a distinct narrow linear bar angled from 11 o’clock to 5 o’clock. Dozens of red background galaxies are scattered across the image. The background of space is black.

  6. NASA's Roman to Use Rare Events to Calculate Expansion Rate of Universe

    February 07, 2024Release ID: 2024-202 Missions: STScI, Roman

    Lensed supernovae offer precise, independent measurement

    A field of galaxies on the black background of space. Some are blue and white, others glow yellow. In the middle of the field is a cluster of five yellowish spiral and elliptical galaxies that form a foreground galaxy cluster. There is one spiral galaxy just below the cluster that has a yellow-whiteish core and is surrounded by diffuse blue material. This galaxy is outlined by a white box, and lines extend from the box’s corners that leads to an enlarged view at the right. Four arrows point at yellow faint points of light that circle the central glow of the galaxy.

  7. Webb Spotlights Gravitational Arcs in 'El Gordo' Galaxy Cluster

    August 02, 2023Release ID: 2023-119 Missions: Webb

    New image reveals galaxy groups, smudges, and dusty distant objects.

    A black background is scattered with hundreds of small galaxies of different shapes, ranging in color from white to yellow to red.

  8. NASA's Webb Identifies the Earliest Strands of the Cosmic Web

    June 29, 2023Release ID: 2023-124 Missions: Webb

    A filament of 10 galaxies seen just 830 million years after the birth of the universe

    Image shows a black field speckled with a variety of galaxies of numerous shapes and sizes. The galaxies are white, yellow, blue and red. Red is the predominant galaxy color in the field, indicating very distant galaxies. Eight white circles mark the position of 10 galaxies (two circles contain more than one galaxy). The 10 galaxies are arranged in a diagonal, thread-like line from the bottom left to the top right. This 3-million-light-year-long filament is anchored by a very distant and luminous quasar – a galaxy with an active, supermassive black hole at its core. The quasar, called J0305-3150, appears in the middle of the cluster of three circles on the right side of the image. Its brightness outshines its host galaxy.

  9. NASA's Webb Proves Galaxies Transformed the Early Universe

    June 12, 2023Release ID: 2023-122 Missions: Webb

    Early galaxies’ stars allowed light to travel freely by heating and ionizing intergalactic gas, clearing vast regions around them.

    Thousands of tiny galaxies appear across the black expanse of space. The galaxy colors vary. Some of the smallest galaxies are shades of orange and pink. Most galaxies are so distant they appear as single points of light. At the center is a pink object with six diffraction spikes. This is quasar J0100+2802. It appears slightly smaller than the foreground stars, which appear blue.

  10. Early Universe Crackled With Bursts of Star Formation, Webb Shows

    June 05, 2023Release ID: 2023-127 Missions: Webb

    Webb also continues to uncover a bounty of distant, young galaxies

    Thousands of small galaxies are scattered on a black background. Some are noticeably spirals, either face-on or edge-on, while others are blobby ellipticals. Many are too small to discern any structure. A few spirals are bluish, but most of the galaxies appear yellow or red. A handful of stars display eight-point diffraction spikes.

  11. Webb Reveals Early-Universe Prequel to Huge Galaxy Cluster

    April 24, 2023Release ID: 2023-118 Missions: Webb

    Protocluster Confirmed, 650 Million Years after the Big Bang

    Telescope image with infographic overlays. Wide view of many galaxies colored orange, red and white. Most white galaxies have a hazy halo. A grouping of larger white galaxies appears below center. In the top half of the image, five small white squares highlight galaxies that would not stand out otherwise, with lines radiating from the small squares to a stacked column of five squares along the entire right side of the image, providing a zoomed-in view of specific galaxies, all appearing red.

  12. Hubble Reaches New Milestone in Mystery of Universe's Expansion Rate

    May 19, 2022Release ID: 2022-005 Missions: Hubble

    Three Decades of Space Telescope Observations Converge on a Precise Value for the Hubble Constant

    Collage of 36 colorful spiral and interacting galaxies

  13. Mapping the Universe's Earliest Structures with COSMOS-Webb

    August 18, 2021Release ID: 2021-042 Missions: Webb

    This ambitious program will study half a million galaxies in a field the size of three full Moons

    A white square with irregular, jagged edges falls just within the dimensions of the image. Within it is a grayscale field that shows hundreds of bright white points in a range of sizes.

  14. Hubble Watches Exploding Star Fade into Oblivion

    October 01, 2020Release ID: 2020-52 Missions: Hubble

    Disappearing Supernova in Distant Galaxy Captured in Hubble Movie

    Supernova in NGC 2525

  15. Mapping the Early Universe with NASA's Webb Telescope

    June 24, 2020Release ID: 2020-37 Missions: Webb

    Researchers will explore a treasure trove of thousands of galaxies

    Telescope image showing thousands of galaxies across the view. Most appear only as tiny dots in shades of red, orange, and white. The background is black.

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