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WIRED @WIRED
As a star like the Sun ages, it loses the ability to convert hydrogen into helium. This causes the star to become unstable and then collapse under the weight of its own gravity, ultimately resulting in a gas cloud—like this one, Abell 24. https://t.co/tZFhFwBaTD 📸 ESO https://t.co/65xd6AQIKT — PolitiTweet.org