Behold the Manifold, the Concept that Changed How Mathematicians View Space

In the mid-19th century, Bernhard Riemann conceived of a new way to think about mathematical spaces, providing the foundation ...
Government Executive

There’s a divide within the Space Force. Congress is forcing the service to address it

A year ago, the leaders of the House Armed Services Committee put the Space Force on notice. The service, they said, was putting too much focus on its operators and not enough on its acquisitions ...