A Type Ib Supernova is a powerful explosion that occurs when a massive star, having shed its outer hydrogen layer, collapses under its own gravity. This type of supernova is typically associated with stars that have lost their hydrogen envelope, often due to strong stellar winds or interactions with a companion star. These supernovae are characterized by their bright light and specific spectral features, particularly the presence of helium lines. They are part of a broader category of supernovae, known as core-collapse supernovae, which result from the gravitational collapse of massive stars at the end of their life cycles.