The travelling salesman problem (TSP) remains one of the most challenging NP‐hard problems in combinatorial optimisation, with significant implications for logistics, network design and route planning ...

A federal judge said the Empire Wind project off Long Island would suffer “irreparable harm” if the Trump administration continued to hold up work. By Lisa Friedman For half a century, a federal ...

There are points in time at which a well-known technology, which has been used and gradually improved for decades, reaches its physical limitations, forcing a shift towards dramatically different ...

Markets News, Dec. 29, 2025: Major Stock Indexes Close Lower to Start Holiday-Shortened Week; Gold, Silver Retreat From Record Highs Gold and Silver Prices Plunged Monday After Last Week's Big Rally.