The maths meme that has been distracting mathematicians for a century — A seemingly simple set of rules kicks off a kind of mathematical magic trick, which has kept great minds busy since the 1930s. Columnist Jacob Aron explores the origins of the Collatz conjecture, why it is so
British firm vying to build next Red Arrows jets goes into administration — Aeralis was hoping the UK government would award it a contract to replace the Hawk jets currently flown by the RAF.