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#supernova-remnant

science  What is the difference between a planetary nebula and a supernova remnant?

Planetary nebulae and supernova remnants are both fascinating astronomical phenomena, but they are actually quite different. A planetary nebula is...    Read more

scatter_plot  What is the difference between a nova and a supernova remnant?

Nova and supernova are two astronomical events that involve the explosion of stars, but they differ in their characteristics and impact on...    Read more