IC 443, also known as the Jellyfish Nebula, is a supernova remnant located about 5,000 light-years away in the constellation Gemini. It was formed by a massive star explosion estimated to have occurred between 3,000 and 30,000 years ago. Spanning roughly 70 light-years, IC 443 is known for its irregular, jellyfish-like shape created by shockwaves interacting with surrounding gas and dust.

This remnant emits across multiple wavelengths—radio, optical, X-ray, and gamma ray—making it valuable for studying high-energy astrophysical processes. At its core lies a neutron star, likely a pulsar, which further confirms its origin from a core-collapse (Type II) supernova.

IC 443 is a key object in understanding how supernovae impact their surroundings and contribute to the evolution of the galaxy.

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