WASHINGTON: Warp drives that let humans zip around other galaxies may no longer belong purely in the realm of science fiction.
Nasa is believed to have been quietly testing a revolutionary new method of space travel that could one day allow humans to travel at speeds faster than light.
Researchers say the new drive could carry passengers and their equipment to the moon in as little as four hours. A trip to Alpha Centauri, which would take tens of thousands of years now, could be reached in just 100 years.
The system is based on electromagnetic drive, or EMDrive, which converts electrical energy into thrust without the need for rocket fuel.
According to classical physics, this should be impossible because it violates the law of conservation of momentum.
The law states that the momentum of a system is constant if there are no external forces acting on the system – which is why propellant is required in traditional rockets.
Researchers from the US, UK and China have demonstrated EMDrive over the past few decades, but their results have been controversial as no one has been exactly sure how it works.
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