A nuclear blast is the powerful explosion that occurs when a nuclear weapon detonates. This explosion releases an immense amount of energy, resulting in a shockwave, intense heat, and radiation. The effects can cause widespread destruction and loss of life, depending on the weapon's yield and the surrounding environment. The explosion creates a fireball that can reach temperatures of millions of degrees, incinerating everything nearby. Additionally, the blast generates a mushroom cloud, which carries radioactive particles into the atmosphere. The aftermath can lead to long-term environmental and health issues, affecting areas far beyond the initial blast zone.