Is the war entering a new phase? A wave of Ukrainian long-range drones has struck the St Petersburg region overnight, hitting an oil terminal and a Baltic Sea port in one of the largest deep-strike operations targeting President Vladimir Putin's home city. Leningrad region Governor Alexander Drozdenko said air defences shot down 72 unmanned aerial vehicles (UAVs) over the region on Saturday. Russian authorities briefly halted flight operations at Pulkovo Airport and throttled municipal mobile internet networks to jam the drones' cellular-backed navigation systems. St Petersburg Governor Alexander Beglov said that one drone crashed in the grounds of the 18th-century Peterhof Palace complex, and another hit an oil terminal in the city's Kirovsky district.

Could Ukraine hold a presidential election right now? Will Europe use frozen Russian assets to fund war? How can Ukraine rebuild China ties? 'Ukraine is running out of men, money and time' Russian forces launched artillery and drone attacks on Ukraine's Dnipropetrovsk region on Saturday, killing a 68-year-old man, wounding three others and causing fires to break out in residential buildings, according to Ukraine's emergency service. Russian shelling also killed another person in the Kramatorsk district of Ukraine's Donetsk region, the service said.

Could Ukraine hold a presidential election right now? Will Europe use frozen Russian assets to fund war? How can Ukraine rebuild China ties? 'Ukraine is running out of men, money and time' Russian forces launched an air attack on Ukraine's capital, Kyiv, on Monday, killing one civilian in the first reported death in the city this year, according to the Ukrainian military. Russia's military also carried out drone attacks on northeastern Ukraine on Sunday, killing at least two people in the Sumy region and wounding three in the Kharkiv region, according to local officials.

Science Archaeology Who built Scandinavia's oldest wooden plank boat? An ancient fingerprint offers clues. Archeologists are closer to solving the Hjortspring Boat's mysteries. Breakthroughs, discoveries, and DIY tips sent every weekday. Archaeologists examining an ancient boat discovered in Denmark over a century ago are getting some help from a clue usually associated with crime scenes .

Environment Animals Wildlife Endangered Species German hairy snails are disappearing from London's River Thames Londoners are scouring riverbanks to save the endangered mollusk. Breakthroughs, discoveries, and DIY tips sent every weekday. Researchers believe that its signature hairs help the strange creature live in its damp, riverside environments by enabling it to sweat off moisture. By wicking off that excess moisture, the slime gets more sticky, so the snail can hold onto the slick riverside debris and the plants it eats. However, the snail needs some extra support.

Scientists are finally learning who was onboard. Preserved machine guns may finally reveal the names of the lost Flying Fortress crew. The B-17 bomber was specifically designed for high altitude, long distance missions. Breakthroughs, discoveries, and DIY tips sent every weekday. A team of marine archaeologists is one step closer to identifying an Air Force crew who lost their lives aboard a B-17 bomber amid the height of World War II .

Trump-Xi meeting: Who has the upper hand? Could Trump go for a third term? Is the US eyeing its next Latin American target? Why is Trump tearing down parts of the White House? Russia's Ministry of Defence said its forces took control of the villages of Krasnohirske in Ukraine's Zaporizhia region and Sadove in the Kharkiv region, Russian state news agencies reported.

Is Trump losing patience with Putin? Will sanctions against Russian oil giants hurt Putin? How much of Europe's oil still comes from Russia? Russia strikes children's hospital in Ukraine as Kyiv hits energy sites A Russian strike on a children's hospital in southern Ukraine has wounded at least nine people, authorities have said, shortly after Kyiv targeted Russian energy sites with drones. Four children were injured in Russia's strike on the medical facility in Kherson on Wednesday, which Ukrainian President Volodymyr Zelenskyy described as a "deliberate" attack that shows Moscow does not want peace.

Environment Conservation Ocean Dolphins may be getting an Alzheimer's-like disease due to this neurotoxin The neurotoxins, found in algal blooms, primarily affect the body's nervous system. Breakthroughs, discoveries, and DIY tips sent every weekday. For marine biologists, dolphins are often viewed as sentinel species, or animals that shed light on the health of the ocean . Along with whales, porpoises, and other cetacean species, dolphins are one way that researchers know to sound the alarm about environmental hazards that might affect the ocean as a whole and potentially humans. In this context, researchers have connected neurotoxins from algal blooms to brain changes associated with an Alzheimer's-like disease in dolphins in Florida.