Nuclear energy comes from splitting atoms in a reactor to heat water into steam, turn a turbine, and generate electricity. Compared to other forms of renewable energy, nuclear energy is considered beneficial, because of its smaller land footprint and the amount of waste it produces. Among all the developing nations, India is the only one to have generated electricity using indigenously developed, demonstrated, and deployed nuclear reactors. India ranks third in terms of electricity ... Learn what nuclear energy is how atomic splitting generates clean energy in huge quantities and why this high yield source is vital for today's energy needs. Nuclear energy is extraordinary. It comes from splitting atoms in a reactor to heat water into steam, turn a turbine and generate electricity. A nuclear weapon[a] is an explosive device that derives its destructive force from nuclear reactions, either nuclear fission (fission or atomic bomb) or a combination of fission and nuclear fusion reactions (thermonuclear weapon [b]), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter. Nuclear weapons have had yields between 10 tons (the W54) and 50 megatons for the Tsar Bomba (see TNT equivalent). Yields in the low ...