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Scientists Create Fuel "More Dense Than The Core of the Sun"

It could be the perfect nuclear fuel. It generates energy via laser-enabled fusion. It has no radioactive byproducts. Has a group of Swedish researchers found the ultimate form of renewable energy for the 21st century?


Imagine a 10-centimeter cube that weighs 130 tons and is more dense than the core of the sun. Ultra-dense deuterium is just that heavy. Here you can see the facility where chemists are experimenting with the material, which they have managed to create in microscopic amounts at the University of Gothenburg. Deuterium atoms are packed together so tightly that they create an "ultra-dense" material.

When that material is heated up with lasers, those atoms fuse together and release a tremendous amount of energy. Also, according to researcher Lief Holmlid:

We believe that we can design the deuterium fusion such that it produces only helium and hydrogen as its products, both of which are completely non-hazardous. It will not be necessary to deal with the highly radioactive tritium that is planned for use in other types of future fusion reactors, and this means that laser-driven nuclear fusion as we envisage it will be both more sustainable and less damaging to the environment than other methods that are being developed.


My main question is: How can this be a renewable energy source if you still need lots of energy to create the ultra-dense deuterium and power up those lasers?

Cool fact: Scientists believe ultra-dense deuterium is naturally occurring on Jupiter. Time to get those orbital mines in shape.

via University of Gothenberg

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I don't really know much about space travel, but how would we get the ultra-dense deuterium from Jupiter to earth? And if we could, how much do you suppose we're currently capable of transporting at one time?