The universe has a huge hole in it that dwarfs anything else of its kind. The discovery caught astronomers by surprise. The hole is nearly a billion light-years across. It is more
Artistic design : J Vidal-Madjar; planet textures from NASA; copyright: IMCCE-CNRS The chaotic evolution of the planetary orbits in the Solar System could cause a close approach or even a collision within the next 5 billion years, according to a paper in this week’s issue of Nature . The odds a more