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A spiral galaxy with large, open arms. A bar of yellow light, where old stars are gathered, crosses the middle of the disk. The very centre is a white point surrounded by a small, shining ring of star clusters. Thin lanes of dust swirl around this ring, reaching out to follow the spiral arms; also visible across the arms are red, glowing spots where stars are forming. To the right a star shines large and bright.
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Hubble sees spiral galaxy in Lion's heart | Space photo of the day for Nov. 4, 2025

News
By Kenna Hughes-Castleberry published 4 November 2025

This celestial portrait captures the galaxy in remarkable new detail, marking over two decades since Hubble first observed it.

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spiral galaxy occupies most of the image. It is a slightly tilted disc of stars, yellow-white in the centre and blue in the outskirts, showing light from different stars in the galaxy. Its spiral arms curl outwards from the centre, speckled with blue star clusters. Dark reddish threads of dust swirl around the galaxy’s centre. The backdrop is two medium-sized and many small, distant galaxies on a black background.
Spiral galaxy NGC 3370 offers a stunning view to the Hubble Space Telescope. (Image credit: ESA/Hubble & NASA, A. Riess, K. Nol)

Located in the Milky Way, our own galactic home, is one such spiral, and studying other examples like NGC 3370 provides astronomers with clues about how galaxies form and evolve.

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Where is it?

Spiral galaxy NGC 3370 is located 90 million light years away in the Leo constellation.

spiral galaxy occupies most of the image. It is a slightly tilted disc of stars, yellow-white in the center and blue in the outskirts, showing light from different stars in the galaxy. Its spiral arms curl outwards from the center, speckled with blue star clusters. Dark reddish threads of dust swirl around the galaxy’s center. The backdrop is two medium-sized and many small, distant galaxies on a black background. Type la supernovas. Cepheids are pulsating stars whose brightness rises and falls in predictable cycles, the longer the period of pulsation, the more luminous they are. Meanwhile, Type la supernovas occur when a galaxy formation.

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Kenna Hughes-Castleberry

Kenna Hughes-Castleberry is the Content Manager at Space.com. Formerly, she was the Science Communicator at JILA, a physics research institute. Kenna is also a freelance science journalist. Her beats include quantum technology, AI, animal intelligence, corvids, and cephalopods.

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A spiral galaxy with large, open arms. A bar of yellow light, where old stars are gathered, crosses the middle of the disk. The very centre is a white point surrounded by a small, shining ring of star clusters. Thin lanes of dust swirl around this ring, reaching out to follow the spiral arms; also visible across the arms are red, glowing spots where stars are forming. To the right a star shines large and bright.
Hubble spies a glowing 'starburst ring' | Space photo of the day for Oct. 20, 2025
 
 
A ring of glowing gas and stars creates a brilliant galaxy seen in the darkness of space.
Hubble Telescope finds galaxy with puzzling shape | Space photo of the day for Sept. 29, 2025
 
 
A glowing spiral galaxy is full of white, yellow and blue light with bursts of pink around the edges.
Hubble telescope spies glowing galaxy in a cosmic 'Crane' | Space photo of the day for Sept. 11, 2025
 
 
A close-in view of the centre of galaxy M82. Bright, bluish light radiating from the centre is due to stars actively forming there. A thick lane of gas, black in the centre and red around the edges, crosses the centre and blocks much of the light. Thinner strands and clumps of reddish dust cover much of the rest of the view.
Hubble lights a cosmic 'cigar' in the Great Bear | Space photo of the day for Sept. 25, 2025
 
 
Purple and white clouds of dust and gas swirl around bright twinkling stars in deep space
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