Mars has been a long-shot target for NASA and various space researchers around the world who believe that the Red Planet could be a potential human colony in the future. Now, the theoretical travel time for humans to reach Mars, according to NASA’s calculations, is around 9 months with the minimum distance between Earth and Mars being 54.6 million km. However, engineers from Canada have devised a new laser-propulsion system that claims to reduce the travel time to just 45 days. Let’s take a look at the details.
A team of researchers and engineers from Montreal’s McGill University say that they have devised a new laser-propulsion-based spacecraft that could take humans from Earth to Mars in just over six weeks. The researchers suggest a directed-energy propulsion system using large lasers based on Earth to jet-shot a spacecraft from Earth to Mars in the said time.
“A phased-array laser of this size and incorporating atmospheric compensation would be able to deliver laser power to spacecraft in cislunar space, where the incident laser is focused into a hydrogen heating chamber via an inflatable reflector. The hydrogen propellant is then exhausted through a nozzle to realize specific impulses of 3000s. The architecture is shown to be immediately reusable via a burn-back maneuver to return the propulsion unit while still within range of the Earth-based laser,” it further adds.
