Statement

A recent study confirmed the existence of gravitational waves. This extraordinary discovery has led more and more people to become interested in space. Sadly, space is still quite unreachable for common people. William is a bit depressed by this fact, but he's positive that he can exploit this media attention to advertise a new business. He decided to launch a startup for interstellar travel. It's important to note, though, that stars can be quite far. The Sun is the star that's closest to us, but the others are pretty far. Proxima Centauri, the "second nearest star", is 4.24 light years away from the Sun: that means that it would take well over four years to reach this star! (assuming we know how to travel at the speed of light). William believes he can build a spaceship that is able to travel at the speed of light (he's found https://www.youtube...