Emission Nebula in The Milky Way Galaxy's Bulge | Euclid Space Telescope

Emission Nebula in The Milky Way Galaxy's Bulge | Euclid Space Telescope

This is a picture of an emission nebula, known as G000.583-00.870, visible in red. It was captured by the European Space Agency’s Euclid space telescope. This nebula is a cloud formed of ionized gases that were released by massive stars that recently formed in a spiral arm of the Milky Way. The area is zoomed in ten times compared to the full image.

Image Description: A dense field of tiny, closely packed points of light fills the image. The background is mostly dark with countless small white and yellow points spread evenly across it. Near the center, a brighter, irregular reddish area stands out, with several lighter patches clustered together. A few slightly bluish points are scattered across the scene, contrasting with the warmer colors.

The Euclid galactic bulge survey was conducted in early 2025 using Euclid’s optical camera VIS (monochromatic, one color). The colors were added using observations captured in summer 2025 with the Canada-France-Hawai'i Telescope's MegaCam camera (CFHT-Megacam) in Hawai’i. The colors captured by MegaCam are in optical light through three broad-band filters (u, g, and r) overlapping the very broad VIS band over the r-band. The appearance of the most luminous stars in these images varies from those generated from Euclid-only images with additional diffraction spikes and a subtle halo around the very bright stars. This a consequence of combining Euclid VIS data for their sensitivity and sharpness and CFHT-MegaCam for the colors. The distinct optical design of the two telescopes become apparent for brighter objects.

ESA's Euclid Space Telescope:
https://www.esa.int/Science_Exploration/Space_Science/Euclid

Credit: ESA/Euclid/Euclid Consortium/NASA, CFHT

Image Processing: J.-C. Cuillandre and E. Bertin (CEA Paris-Saclay)
CC BY-SA 3.0 IGO or ESA Standard Licence

Release Date: June 24, 2026

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