But these shiny balloons would “light up radar like nobody’s business”, says Krueger, and their typical flight altitude is around 12 kilometres. Login or create a free account to read this ...

Back in January 2007, the Bush administration was urging the world's scientists to explore the possibility of deploying giant space mirrors that would block sunlight from reaching the Earth and ...

Preparations were under way Saturday for the New Year’s Eve celebration in Times Square, including getting 25,000 purple and yellow balloons ready to be handed out to revelers. The balloons w… ...