Apple’s Christmas Tree event at Battersea Power Station, this year will be a U.K.-wide competition inviting trees drawn on ...

Two decades ago, the mathematician Moon Duchin spent her summers teaching geometry at Mathcamp, a program for mathematically talented teens. Campers contemplated notions such as how to prove whether a ...

Four all-Premier League ties as Newcastle take on Spurs, Arsenal host Brighton, Liverpool face Palace and Wolves welcome Chelsea; three Welsh teams have reached the fourth round for first time; Round ...