The one thing still holding us back from interstellar travel is our slow spacecraft and researcher are working on solving this. With our present technology, it will take around five months to reach Mars. But NASA scientist Philip Lubin is working on a system where lasers propel spaceship with massive sails to the Red Planet in only a time period of three days.

Pretty much like Bill Nye’s much-hyped solar sail, this ‘photonic propulsion’ system count on on the momentum of photons to move forward. But as an alternative of photons from the Sun’s rays, Lubin’s system would use a push by huge Earth-based lasers.

Read more