Russia has accused the UK of deliberately opting for an escalation of the Ukraine crisis following confirmation that British-made drones had been used in strikes on targets in Russia. In doing so, the United Kingdom is acting as an accomplice and co-perpetrator of the bloody crimes and terrorist attacks, the Russian Embassy to the UK wrote in a statement. London's actions will inevitably carry consequences for which it will have to answer, it said, adding that the deeper its involvement in the conflict, the higher the price it will pay. In response, a spokesperson for the Ministry of Defence (MoD) told BBC News that Britain stood shoulder to shoulder with Ukraine. Russia should be in no doubt about the resolve of this Government to stand against Russian aggression, in Ukraine and against the UK and our allies, said the spokesperson in a statement.

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Pentagon orders 30 U.S. universities to audit foreign ties to China, Russia, and Iran or risk losing federal funding over national security concerns.

U.S. military bases lack sensor systems and counter-drone defenses to stop attack drone swarms, a senior commander warns as the Pentagon pursues laser and microwave weapons.

Republican Rep. Warren Davidson of Ohio suggested in a post on X that Sen. Darline Graham of South Carolina is an "ally" of the "swamp."

A controversial congresswoman's operations director downplayed Luigi Mangione's guilty plea in the UnitedHealthcare CEO Brian Thompson murder, citing the Epstein files on X.

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The Sunshine Protection Act awaits Senate action after the House voted to end the twice-a-year clock change and establish permanent daylight saving time across the U.S.

Improving energy performance can effectively extend the time a robot can operate and reduce battery load, enabling lighter, more flexible, and more durable robotic systems. Nature has evolved optimal energy-saving locomotion strategies through billions of years of natural selection, providing unparalleled blueprints for robotic optimization. Among diverse modes of aquatic locomotion, intermittent swimming, also called bout-and-glide swimming, is a widespread adaptive behavior in aquatic organisms of a wide range of sizes, including larval zebrafish, red-nose tetra, koi carp, and even whales. This natural bout-and-glide gait features alternating motion phases: short periods of active body and tail undulation for propulsion, followed by passive gliding with a streamlined, straight body posture. It is widely recognized that this intermittent swimming gait is closely associated with optimizing biological energy, making it of great research value to transplant and explore such natural motion mechanisms into robotic control systems.

Raytheon, an RTX business, received a $22.9 billion U.S. Navy contract to accelerate Tomahawk missile production as the Pentagon moves to expand munitions stockpiles.