Jupiter is not massive enough to create the high temperature and high pressure required by even deuterium-tritium thermonuclear fusion, the lowest temperature and pressure type of fusion.
The Sun is much more massive and can fuse ordinary hydrogen, deuterium, tritium, and helium 3; producing helium. When the sun begins to run out of hydrogen in 6 billion years, the core will collapse and eventually be able to fuse helium into carbon and become a red giant. The red giant will swallow Mercury, Venus and Earth before it stops expanding.
The sun shines as a star because it has enough mass and pressure at its core to undergo nuclear fusion, which generates energy and light. Jupiter, despite having a similar composition, does not have enough mass to sustain nuclear fusion and therefore does not shine like a star.
nuclear fusion reaction
The absorption of a free moving neutron by the atom's nucleus
The fusion of Hydrogen into Helium causes heat and radiation to occur.
I found the website K1 Project very helpful. They had several articles underneath their Learn/Energy tab which should answer any questions about nuclear fusion.
Yes, Enrico Fermi worked on fusion research, particularly during his time at the University of Chicago and later as part of the Manhattan Project. His contributions to nuclear physics laid the groundwork for understanding nuclear reactions, including fusion. However, he is more famously known for his work on nuclear fission rather than fusion specifically.
cant repeat the same process twice!,
One good reason-it has not been made to work yet! We do of course use solar energy which is produced by nuclear fusion
No, not yet. Maybe in another 20 years when its perfected (which they have been saying every 20 years since they originally began work in the 1950s on lab prototypes of controlled nuclear fusion reactors for power generation).
The stars produce their heat from nuclear fusion reactions. Work on earth to produce controllable nuclear fusion is concentrating on one particular reaction, between deuterium and tritium, because it is the easiest to get going (though hard enough!). Stars operate with other reactions but all of the nuclear fusion type. You can read more in Wikipedia 'Nuclear fusion'
The first work on nuclear fusion was performed in 1933 by Ernest Rutherford. The first nuclear fusion "reactor" was built in 1947 by teams in the UK and USSR. To this day no nuclear fusion "reactor" has been able to produce more energy than had to be put into it to get the reaction started, despite many different experiments on many different designs.
Nuclear fusion in the sun occurs when hydrogen atoms combine to form helium, releasing a large amount of energy in the process. This energy is in the form of light and heat, which is what we see and feel as sunlight.