A recently discovered 'hell planet' has been found to have some of the most 'extreme' conditions in the universe, with raining rocks and 60-mile deep lava seas. The world, named K2-141b, was found around 200 light years away from Earth and has winds of more than 3,000 mph and surface temperatures over 5,000F. Researchers from McGill and York University are the first to predict the weather on the rocky planet ...