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Winds of Change Are Blowing Hard

Credit: ESA/Hubble & NASA
Tuesday, June 30, 2015: Galaxy SBS 1415+437 or SDSS CGB 12067.1 floats roughly 45 million light-years away from Earth. Astronomers consider SBS 1415+437 a Wolf–Rayet galaxy, a type of starbursting galaxy filled with an remarkably large number of extremely hot and massive stars known as Wolf–Rayet stars. These stars can measure around 20 times as massive as the sun, but are depleting themselves as fast as possible, spewing forth winds of particles. A typical star of this type can lose a mass equal to that of our sun in 100,000 years. Wolf-Rayet stars have short lifetimes, therefore galaxies usually contain few of these stars, except in Wolf–Rayet galaxies.

— Tom Chao   Less «
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