There are some irrefutable truths: For every action there is an equal and opposite reaction, and nothing can exceed the speed of light.
And so travelling to far off planets in other solar systems remains a distant dream.
Simply put, we will never have the capacity to reach those far-flung planets we see in the night sky.
Or will we?
Dr Miguel Alcubierre, is a theoretical physicist working at the ‘Nuclear Sciences Institute’ of the National Autonomous University of Mexico