The weather service warned of extreme cold temperatures for northern states

A popular coffee chain announced plans to open stores in several European countriesWeather conditions caused delays in air travel across the country

A team of veterinarians opened a clinic that specializes in treating exotic petsThe stock market closed at a record high after a week of strong gainsA charity organization started a campaign to raise awareness about mental health in schools

Scientists observed a rare astronomical event involving a comet passing EarthThe city introduced a bike-sharing program with 100 new bikes at 20 stations

Researchers studied the effects of sleep deprivation on driving ability

A famous actor starred in a new movie that premiered at a international film festivalA famous singer announced a world tour, with concerts scheduled in 30 countries over the next year.

Local farmers protested against low crop prices, demanding government support to cover production costs.A new report showed that renewable energy jobs have increased by 25% over the past two years.

A major car manufacturer announced it will stop producing gasoline-powered cars by 2030, focusing on electric vehicles.A study found that socializing with friends at least once a week can improve mental well-being in older adults.

(责任编辑：马海生)