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Supernova GRB 250314A (Artist’s Concept)

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

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.

On the left, the characteristic jets of a gamma-ray burst can be seen punching through material that was ejected by the supernova explosion.

On the right, the glowing supernova shines through gas continuing to rush outward from the blast.

In the background, the supernova’s host galaxy contains numerous bright star-forming regions.

  • Release Date
    December 9, 2025
  • Science Release
    NASA’s Webb Identifies Earliest Supernova to Date, Shows Host Galaxy
    Read the release
  • Credit
    Artwork: NASA, ESA, CSA, STScI, Leah Hustak (STScI)

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  • Full res "Artist's Concept" watermarked (for display), 3840x2160, 3840 × 2160
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  • Half res "Artist's Concept" watermarked (for display), 1920x1080, 1920 × 1080
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  • Full Res (for display), 3840x2160, 3840 × 2160
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  • Full Res (for print), 3840x2160, 8001 × 4500
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  • Half Res (For Display), 1920x1080, 1920 × 1080
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Related Images & Videos

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.

GRB 250314A Pull-out (NIRCam Image)

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.

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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