Simply put, pi is a mathematical constant that expresses the ratio of a circle’s circumference to its diameter. It figures into numerous formulas used in physics, astronomy, engineering and other ...

The former Google chief executive is taking a controlling interest in Relativity Space, which aims to build low-cost, ...

Europe's Ariane 6 rocket lifted off Thursday from French Guiana and deployed a high-resolution reconnaissance satellite into orbit for the French military, notching a success on its first ...

Mortgage lender Rocket Cos. has agreed to acquire online real estate brokerage Redfin in an all-stock deal valued at $1.75 billion. The transaction, announced Monday, gives one of the nation’s ...

SpaceX's Starship rocket exploded during a test flight, months after a previous failed launch attempt - with multiple flights having to be grounded in Florida due to debris. The 403-foot rocket ...