A little dose of reality today...
Most self-respecting starships
in science fiction stories use antimatter as fuel for a good reason –
it’s the most potent fuel known. While tons of chemical fuel are needed
to propel a human mission to Mars, just tens of milligrams of
antimatter will do (a milligram is about one-thousandth the weight of a
piece of the original M&M candy).
However, in reality this
power comes with a price. Some antimatter reactions produce blasts of
high energy gamma rays. Gamma rays are like X-rays on steroids. They
penetrate matter and break apart molecules in cells, so they are not
healthy to be around. High-energy gamma rays can also make the engines
radioactive by fragmenting atoms of the engine material. Read the rest
of the article :