Discovery News writes: If you could stand on the surface of Kepler-16b, you’d have two shadows. At sunset, you would see an orange star about the size of the sun and next to it a much fainter red star. As the stars slipped toward the horizon, they would change places in the sky, like partners in a square dance.
You would not need to be Luke Skywalker visiting his home planet of Tatooine in the movie “Star Wars” to watch the twin sunset. The only science fiction in this story
A planet 20 light years away is the first outside the solar system to be officially declared habitable by European scientists. The ‘exoplanet’ Gliese 581d has conditions that could support Earth-like life, including possible watery oceans and rainfall, they say. Yet any future space voyagers landing there would find themselves in truly alien surroundings. The sky is likely to be murky red, not blue, gravity is twice that of Earth, doubling the weight of anyone standing on the