This Supernova Remnant Is a Festive Holiday Bauble

Dear Great Observatories: Don't ever stop sending these beautiful images home of our universe in all its diverse wonder. This optical/X-ray composite of supernova remnant SNR 0509-67.5 is a delicate bubble tracing a shockwave of excited gas, and too pretty for words. » 12/27/14 9:00am 12/27/14 9:00am

The glowing shell that remains after a binary star supernova

This delicate red bubble of gas floats in a small galaxy about 160,000 light years from Earth. Its the result of an extraordinary supernova, caused by a binary star system where one star consumes the other - then explodes. » 12/17/10 7:30am 12/17/10 7:30am