Astronomers have boldly gone where no man has gone before in announcing that Star Trek’s fictional planet Vulcan is real – and even has a sun just like ours. The planet is twice the size of Earth and has a 42-day-long year. Since the show’s writer associated Vulcan with a real star, named 40 Eridani A, curious scientists and sci-fi fans alike have wanted to find out if there actually is a planet...