Proxima b: How we'll actually get to new planet that could be a second Earth

Scientists have found another Earth, which might have the right conditions for us or aliens to live. But will we ever actually get there and find out for sure? Though the planet is in one sense our closest next door neighbour – orbiting around Proxima Centauri, the closest star to our own – it's still a good 4.3 lightyears away. That will mean that it will be incredibly difficult to get there, and the conventional rockets that we have today would take thousands of years to arrive. It will take new kinds of technology to actually reach our newly-discovered neighbour.