Some stars do not develop degenerate helium cores.
Both white dwarfs and neutron stars are extremely dense remnants of the collapsed cores of dead stars.
A very large amount of energy is released.
Black holes are invisible because their gravity well pulls in any light around it, but technically they're not stars. They are the collapsed cores of stars.
A mesoscale convective system is a larger scale complex of thunderstorms.
Basically all stars do that.
There are two reasons why red dwarf stars spend the longest time in the main sequence. First, due to lower internal pressure and temperature, red dwarfs consume their fuel much more slowly than larger stars. Second, unlike other stars, red dwarfs are fully convective, which means they are not just limited to the hydrogen in their cores.
Carbon is formed in the cores of stars and distributed into space during the death of stars.
The cores of stars and hydrogen bombs.
In the cores of stars and hydrogen bombs.
Some stars do not develop degenerate helium cores.
Oxygen is made all the time in the cores of stars.
. . . in the cores of stars and thermonuclear weapons.
Oxygen was created by fusion in the cores of stars and distributed through the universe when those stars exploded.
Oxygen was created by fusion in the cores of stars and distributed through the universe when those stars exploded.
Gold is an element that is formed in the cores of stars; it is not organic and does not grow.
Like most elements, selenium was formed in the cores of stars.