A new report says the cost of measures imposed on communications firms by the draft Investigatory Powers Bill could put them at a commercial disadvantage
Major problems at a salt mine where 126,000 drums of radioactive debris are stored is fuelling public distrust of Germany's long-term waste disposal plans
Counting arrangements of balls in a box was thought impossible above a certain number, but now it's been cracked – and the method could predict avalanches
A forgotten tablet has cracked a long-standing mystery about strange notations on other tablets - and shown ancient Babylonians used precursors to calculus