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 ...

Part of Pine Island Glacier collapsed several years ago, forming an unstable inlet where no ship had sailed. Until now. By Raymond Zhong Construction can continue on an $11.2 billion project off the ...

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.