Beacon of Light

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A spiral galaxy shown in mid-infrared light. The image is dominated by an extremely bright glow from the galaxy’s nucleus. Six large and two smaller rays of light emit from the center, which are diffraction spikes created by the telescope’s optics. The galaxy’s spiral arms are visible by two lines of glowing orange bubbles which whirl out into the disc. Swirling blue clouds of dust make up the rest of the galaxy.
This latest Picture of the Month from the NASA/ESA/CSA James Webb Space Telescope features Messier 77 (M77), a barred spiral galaxy famous and appreciated among astronomers for its combination of relative proximity and spectacular features to study. It is located 45 million light-years away in the constellation Cetus (The Whale).
ESA/Webb, NASA & CSA, A. Leroy

The heart of galaxy M77 shines brightly in this May 7, 2026, image from NASA’s James Webb Space Telescope. The intense glow is due to gas being pulled by the strong gravity of the central black hole into a tight and rapid orbit around it. The motion of the gas causes it to heat up, releasing tremendous amounts of radiation.

The bright lines radiating out of the center are diffraction spikes. The spikes are not a physical feature of the galaxy, but an optical effect caused by the telescope itself.

Read more about M77.

Image credit: ESA/Webb, NASA & CSA, A. Leroy

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