Not only are tachyons possible, but their existence is necessary for many of the most highly accepted current theories of physics.
No not ever.
Tachyons are theoretical faster than light particles.
Tachyons are any theoretical particles that have an imaginary mass. Because all tachyons have an imaginary mass, the velocity of all tachyons must exceed the speed of light (contrasted with Bradyons like electrons, quarks, and composite particles which must always move slower than light). Most modern theories suggest that even if such particles exist, they would likely be short lived due to effects such as tachyon condensation.
yEs possible yEs possible
yes its possible
Tachyons are theoretical particles and cannot be equated to existing massed particles.
It seems unlikely, considering that there are good reasons to consider that the speed of light is an absolute speed limit in our Universe.
Tachyons are imaginary subatomic particles that always travel faster than light.
No not ever.
Depends what you mean by "fringe." Some PhD's in major institutions are doing research into tachyons. But it is not considered an area that a LOT of research effort is being or should be done.
Tachyons are theoretical faster than light particles.
Well, tachyons have not been proved real yet. If they were real maybe one day we can possibly travel through time or used their speed of 20 times the speed of light to reach far places the universe and beyond.
They are called "tachyons."
hypothetical particles whose velocity exceeds the speed of light also spelled "tachyons"
Tachyons are any theoretical particles that have an imaginary mass. Because all tachyons have an imaginary mass, the velocity of all tachyons must exceed the speed of light (contrasted with Bradyons like electrons, quarks, and composite particles which must always move slower than light). Most modern theories suggest that even if such particles exist, they would likely be short lived due to effects such as tachyon condensation.
Not as far as we know. Theoretically these particles are called tachyons.
Faster than light travel is possible, but only for small particles like tachyons. Travel for humans is virtually impossible unless a way is developed to convert humans to particles. It has been proven improbable, but technology may prove it possible in the far future.