Here's your chance to talk to aliens

As every UFO fanatic knows, the Earth received a short message from outer space back in 1977 - and now you've got a chance to reply.

James Cameron prepares for world's deepest dive

Hollywood director James Cameron is on the point of attempting a dive to the bottom of the Mariana Trench on the western Pacific - the deepest place on Earth.

Team flies house with balloons in real-life version of Up!

A team of scientists and engineers has succeeded in reproducing the wonderful flying house from the movie Up!, by attaching hundreds of helium balloons to a sixteen-foot-square mock-up of the building.