SpaceGravity movie shows the dark side of space flight The new movie Gravity makes you feel what it's like to be in orbit, and the physics is great too. You won't envy astronauts any more, though CultureLab
EarthAre 'fire ice' methane hydrates the new fracking? If schemes to extract gas from icy cages beneath the oceans are successful, don't be surprised to hear scare stories from people with vested interests Opinion