🪐 Betelgeuse, a red supergiant star about 642 light-years from Earth, is nearing the end of its life and will eventually explode as a supernova—a titanic stellar explosion. Supernovae like this release more energy in a few weeks than our Sun will in its entire 10-billion-year lifespan, scattering heavy elements like iron and gold into space to help form new stars and planets. ✨ #supernovae⚡#betelgeuse⚡#stardust⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries

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@cosmomyst · Post #366 · 2025/10/03 12:21

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🪐 One of the most unusual stars known is SDSS J122859.93+104032.9, a "carbon-rich white dwarf" about 1,000 light-years from Earth. Unlike typical white dwarfs—stellar remnants made mostly of hydrogen and helium—this star's atmosphere is packed with carbon, giving it a faint, bluish glow and defying expectations about how dying stars shed their outer layers. ✨ #unusualstars⚡#white⚡#dwarfs⚡#stardust⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries 👉more Channels

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#unusualstars #white #dwarfs #stardust #nasa #galaxy #stars #astronomy #universe #cosmos #space