January 2023

Scroll down to learn more about this month's featured image from the James Webb Space Telescope and to see more site updates.

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Picture of spiral galaxy
Face-on spiral galaxy, NGC 3351, is split diagonally in this image: The James Webb Space Telescope’s observations appear on bottom right, and the Hubble Space Telescope’s at top left. Webb and Hubble’s images show a striking contrast, an inverse of darkness and light. Why? Webb’s observations combine near- and mid-infrared light and Hubble’s showcase visible and ultraviolet light. Dust absorbs ultraviolet and visible light, and then re-emits it in the infrared. In Webb's images, we see dust glowing in infrared light. In Hubble’s images, dark regions are where starlight is absorbed by dust.

Recent Site Updates

October 2024

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September 2024

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August 2024

Photograph of planet Neptune with moons and rings

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