12/02/2023
Stars are giant gatherings of hydrogen atoms that form from massive gas clouds due to gravity. Nuclear fusion in their core converts hydrogen into helium, releasing vast energy.
This energy, in the form of radiation, balances against gravity, ensuring the star remains stable as long as fusion continues in its core.
Stars with masses more significant than our sun have a unique fusion process at their cores. The intense heat and pressure allow them to create heavier elements, including iron. However, the fusion of iron does not release any energy.
Black Hole made from the collapse of massive stars in supernova explosions and appear as black spheres with a boundary, the event horizon.