Why Einstein must be wrong: In search of the theory of gravity

Einstein's theory of gravity—general relativity—has been very successful for more than a century. However, it has theoretical shortcomings. This is not surprising: the theory predicts its own failure at spacetime singularities ...

Ecological theory can help explain why segregation persists

An ecological theory may help to explain why segregation is so widespread and persistent in US cities, according to a paper published today in Buildings and Cities. The new way of framing segregation's endurance may provide ...