Scientists find evidence of a giant star explosion from a binary system

Scientists have discovered for the first time evidence of a massive binary star system in which two stars exploded in quick, closely spaced events over a period ranging from 20,000 to 110,000 years. These explosions left behind glowing gas clouds known as nebulae. One of these is the well-known Jellyfish Nebula, resulting from the explosion of a star with a mass exceeding 15 to 25 times that of the Sun. The other is the SNR G189.6+3.3, caused by the explosion of a star at least twenty times more massive than the Sun. Both stars are about 6,000 light-years away from Earth in the Gemini constellation. It is believed that they have transformed into neutron stars following their explosions. This discovery provides a unique opportunity to study the evolution of large binary star systems, representing the first instance linking a supernova explosion with the observable remnants it leaves behind.

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