NASA’s Hubble Telescope saw a gigantic, exploding star disappear into the void

Hubble observed a supernova on the outer edge of spiral galaxy NGC 2525. 


NASA, ESA, and A. Riess (STScI/JHU) and the SH0ES team Acknowledgment: M. Zamani (ESA/Hubble)

Titanic, runaway thermonuclear explosion. A disappearing act. Nature’s atomic bomb. NASA sure knows how to describe a supernova, the final moments of a star’s existence.

Seventy-million light-years away in the scenic spiral galaxy NGC 2525, a white dwarf exploded and the Hubble Space Telescope witnessed its last days. NASA and the European Space Agency, which jointly run Hubble, released a rare time-lapse of the supernova’s fading brightness. 

The space telescope first started watching the supernova, named SN 2018gv, in February 2018. The time-lapse covers almost a year of Hubble observations.

The supernova initially outshone the other stars in its host galaxy. “When a star unleashes as much energy

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