The concept of interstellar travel has fascinated the human race for thousands of years.
(TMU) – The concept of interstellar travel has fascinated the human race for thousands of years. Discoveries made in the last century, however, have both bolstered and dampened that fascination. While the number of habitable star systems available for visitation has grown exponentially, the distance between these systems has grown more bleakly, mathematically daunting.
If we sent our fastest space probe to the nearest star, Alpha Centauri, it would take tens of thousands of years to arrive. While galaxies look like homogenous swirls of star clusters, the reality is we are looking at it from a vast, intergalactic scale; the extraordinary distances between stars still make crewed interstellar travel a dubious proposition that many scientists believe won’t be possible for centuries if at all.
However, in recent years, a number of technological models of propulsion – such as light sails pushed by lasers, ion thrusters, fusion engines, wormholes, and even hydrogen bombs – have made the concept of an interstellar probe that can travel a certain percentage of the speed of light increasingly possible.