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Massive Old Star Reveals Secrets on Deathbed

Gemini North GMOS Image of M74
Imaged by the Gemini Observatory and Hubble Space Telescope (HST) less than a year prior to the gigantic explosion, the star is located in the nearby galaxy M74 in the constellation of Pisces. This image of M74 (NGC 628) was obtained by the 8.1-meter Gemini North Telescope on...

Like a doctor trying to understand an elderly patient's sudden demise, astronomers have obtained the most detailed observations ever of an old, but otherwise normal massive star just before and after its life ended in a spectacular supernova explosion.

Imaged by the Gemini Observatory and Hubble Space Telescope (HST) less than a year prior to the gigantic explosion, the star is located in the nearby galaxy M74 in the constellation of Pisces. These observations allowed a team of European astronomers led by Dr. Stephen Smartt of the University of Cambridge, England to verify theoretical models showing how a star like this can meet such a violent fate.

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Last Updated
Mar 20, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

Credits

NASA, ESA and the GMOS Commissioning Team (Gemini Observatory)