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Comet 3I/ATLAS
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NASA missions are working together to track and study this rare, interstellar comet as it passes through our solar system. Find images and other media resources here.

This diagram shows the trajectory of interstellar comet 3I/ATLAS as it passes through the solar system. It will make its closest approach to the Sun in October.

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NASA Assets Planning to Observe
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Images

Black and white star field with a red inset showing a close up view with orange crosshairs around a tiny white dot, representing the interstellar comet.

ATLAS Survey Telescope: First Image

This image shows the observation of comet 3I/ATLAS when it was discovered on July 1, 2025. The NASA-funded ATLAS survey telescope in Chile first reported that the comet originated from interstellar space.

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This animation shows the observations of comet 3I/ATLAS when it was discovered on July 1, 2025. The NASA-funded ATLAS survey telescope in Chile first reported that the comet originated from interstellar space.

ATLAS Survey Telescope (.gif)

This animation shows the observations of comet 3I/ATLAS when it was discovered on July 1, 2025 by the NASA-funded ATLAS survey telescope in Chile.

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At the center of the image is a comet that appears as a teardrop-shaped bluish cocoon of dust coming off the comet’s solid, icy nucleus and seen against a black background. The comet appears to be heading to the bottom left corner of the image. About a dozen short, light blue diagonal streaks are seen scattered across the image, which are from background stars that appeared to move during the exposure because the telescope was tracking the moving comet.

Hubble Space Telescope

Hubble captured this image of the interstellar comet 3I/ATLAS on July 21, 2025, when the comet was 277 million miles from Earth.

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A chart with the X axis labeled RA Offset and the Y axis labeled Decl. Offset. There is a blue diamond and on the middle height, to the left there is a red and yellow dot.

James Webb Space Telescope

NASA’s James Webb Space Telescope observed interstellar comet 3I/ATLAS Aug. 6, with its Near-Infrared Spectrograph instrument. 

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Three charts with the X axis labeled RA Offset and the Y axis labeled Decl. Offset. There is a blue diamond and on the middle height, to the left there is a red and yellow dot.

James Webb Space Telescope

NASA’s James Webb Space Telescope observed interstellar comet 3I/ATLAS Aug. 6, with its Near-Infrared Spectrograph instrument. (3 images)

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Against a black background is a red circle, which appears fuzzy and slightly pixelated. At the center is a bright area of yellow, and at the center of that is a bright area of white.

SPHEREx

NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) observed interstellar comet 3I/ATLAS Aug. 7 to Aug. 15.

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This horizontal moving image shows red and white blotches against a black background. In the middle, a bright red, yellow, and white object gets bigger.

SPHEREx (.gif)

NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) observed interstellar comet 3I/ATLAS Aug. 7 to Aug. 15.

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Graphics

Animation of comet's trajectory through the solar system

Comet Trajectory (.gif)

Animation by NASA Eyes on the Solar System of comet 3I/ATLAS moving through the solar system.

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This diagram shows the trajectory of interstellar comet 3I/ATLAS as it passes through the solar system. It will make its closest approach to the Sun in October.

Comet Trajectory (.jpg)

This diagram shows the trajectory of interstellar comet 3I/ATLAS as it passes through the solar system.

View

Comet 3I/ATLAS Video Update Library

  • September 2025

    NASA Spacecraft Observe Interstellar Comet 3I/ATLAS as It Approaches Mars

    Watch

  • July 2025

    What We Know About Interstellar Comet 3I/ATLAS

    Watch

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Comet 3I/ATLAS

NASA missions are working together to track and study this rare, interstellar comet as it passes through our solar system.

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