First, it looks like Xena is now a planet… The IAU have come up with a definition of a planet, and decided that a planet needs to be mostly circular and orbiting the sun. It was a brilliant definition… and it means that Pluto is still a planet. Pluto, and the other planets like Xena have been nicknamed Plutons. School just got more complex… The models of the solar system now are much bigger with 12 planets in the solar system!

Network world has a list of the top pieces of software ever written. And the BBC has a list of the UK’s greatest unsung landmarks