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GRB 250314A Pull-out (NIRCam Image)

Webb image shows hundreds of galaxies of all shapes and sizes against the black background of space. Toward the center-right is a large box that zooms in to show a faint red dot with the label GRB 250314A.

NASA’s James Webb Space Telescope identified the source of a super bright flash of light known as a gamma-ray burst: a supernova that exploded when the universe was only 730 million years old. Webb’s high-resolution near-infrared images also detected the supernova’s host galaxy. Its quick-turn observations verified data taken by other telescopes that followed bright emission from a gamma-ray burst that came onto the scene in mid-March.

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    13:25:12.16
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    -05:16:55.10
  • Constellation
    ConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.
    Virgo
  • Dimensions
    DimensionsThe physical size of the object or the apparent angle it subtends on the sky.
    Image is about 2.3 arcminutes across

About the Data

  • Data Description
    Data DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
    Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.

    This image was created with Webb data from proposal: 9296 (A. Levan)

  • Instrument
    InstrumentThe science instrument used to produce the data.
    NIRCam
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    02 July 2025
  • Filters
    FiltersThe camera filters that were used in the science observations.
    F150W, F200W, F277W, F356W, F444W
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    GRB 250314A
  • Object Description
    Object DescriptionThe type of astronomical object.
    Long Gamma-ray burst at z=7
  • Release Date
    December 9, 2025
  • Science Release
    NASA’s Webb Identifies Earliest Supernova to Date, Shows Host Galaxy
    Read the release
  • Credit
    Image: NASA, ESA, CSA, STScI, Andrew Levan (Radboud University); Image Processing: Alyssa Pagan (STScI)

Downloads

  • Full Res (For Print), 4670 × 4144
    tif (18.95 MB)
  • Full Res (For Display), 4670 × 4144
    png (17.15 MB)
  • 4670 × 4144
    jpg (2.61 MB)
  • 2000 × 1775
    jpg (554.87 KB)
Webb image shows hundreds of galaxies of all shapes and sizes against the black background of space. Toward the center-right is a large box that zooms in to show a faint red dot with the label GRB 250314A.
Color Info
Color InfoA brief description of the methods used to convert telescope data into the color image being presented.

These images are a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam instrument. Several filters were used to sample specific wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are:  Blue= F150W, Green= F200W+277W, Red= F356W+F444W

Compass and Scale
Compass and ScaleAn astronomical image with a scale that shows how large an object is on the sky, a compass that shows how the object is oriented on the sky, and the filters with which the image was made.

Related Images & Videos

Two-part illustration shows a supernova immediately after its explosion, and three months later.

Supernova GRB 250314A (Artist's Concept)

This two-part illustration represents supernova GRB 250314A as it was exploding and three months after that, when Webb observed it. Webb confirmed the supernova occurred when the universe was only 730 million years old. The star clusters at top-left represent its host galaxy.

Image titled u201cJames Webb Space Telescope; Supernova GRB 250314A,u201d with compass arrows and color key.

GRB 250314A Pull-out (Compass NIRCam Image)

This image of supernova GRB 250314A, captured by the James Webb Space Telescope’s Near Infrared Camera (NIRCam), shows compass arrows, scale bar, and color key for reference. The north and east compass arrows show the orientation of the image on the sky. Note that the relat...

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Details

Last Updated
Dec 08, 2025
Location
NASA Goddard Space Flight Center
Contact
Media

Laura Betz
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
laura.e.betz@nasa.gov

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