None of the planets is a fusion reactor. The sun is a fusion reactor but it is not a planet.
Could a fusion reactor be used as a time machine?Hmmm... We don't know. At least us mere mortals don't know - yet. There may be some physicists that know, but they are not talking.Certainly, there is tremendous energy available in a fusion reaction, possibly even enough to accelerate an object to near relativistic speed and make the Lorentz transformations take effect, but I would wonder how "squashed" that object would be.For now, lets settle on "no, a fusion reactor can not be used as a time machine".Followup:That answer was somewhat tongue in cheek, because the Lorentz transformations can only dilate or contract time, they cannot, to the best of our knowledge, change time. The answer remains, "no".
explain how a fusion reactor would be similar to a fission reaction
What is the Tokamak Fusion Reactor?
Nobody knows- they have not yet built a fully working fusion reactor.
Deutrium and tritium are needed as fuel in fusion reactor.
no
It can't as nobody has figured out how to make a fusion reactor.
It doesn't produce radioactive byproducts.
solar is a billion times better.
A Tokamak reactor uses strong magnetic fields to contain the fusion reaction. While significant progress has been made in the field of fusion, temperatures high enough for continuous fusion have not been sustained for long periods of time. (Chemistry: Matter and Change; book)
No place, we have not yet determined how to make a fusion reactor. Only fusion bombs.