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Space
Space
Science
Kenna Hughes-Castleberry

NASA's Hubble telescope watches supernova explosion | Space photo of the day for Aug. 22, 2025

Two images of stars in deep space side by side. The one on the left has a bright star with a bluish tint glowing in space while the one on the right is dimmer.

Recently, the Hubble Space Telescope captured a before-and-after image of a star exploding brightly. With the images one year apart, the contrast shows how bright a supernova is, and how that brightness fades over time.

What is it?

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