The space agency announced plans to study the surface of Mars for signs of past life

A study showed that teachers who receive regular feedback improve their teaching effectivenessThe government invested $400 million in building new solar farms in the southwest

A toy company released a line of science kits that let kids conduct chemistry experiments at homeA community held a cultural festival featuring traditional music and dance from Latin AmericaResearchers found that air pollution from traffic increases the risk of asthma in children

The transportation ministry added more pedestrian crosswalks in busy downtown areasA famous poet was awarded a lifetime achievement award for their contributions to literature

A hospital started a program to help patients with chronic pain manage symptoms without opioids

A retail store announced it would donate 10% of holiday sales to a children’s charityThe government announced tax credits for homeowners who install solar panels on their roofs

A wildfire in a national forest burned 12000 acres with firefighters working to protect nearby communitiesA new messaging app launched with end-to-end encryption for all user conversations

Local farmers markets started offering online ordering and curbside pickup for customersThe WHO launched a campaign to provide clean drinking water to 5 million people in rural areas

(责任编辑：大连市)

• ·A photographer captured photos of a local sunset that went viral on social media
• ·Engineers completed a new water treatment plant that removes microplastics from drinking water
• ·The weather service warned of extreme heatwaves in the western states
• ·Scientists discovered a new species of marine life in the deep ocean using a remotely operated underwater vehicle
• ·Doctors used 3D printing to create a custom implant for a patient with a bone defect
• ·A bakery started making custom cakes for special occasions with personalized edible decorations
• ·The national rugby team won the regional championship after a last-minute try in the final match
• ·Researchers studied how exercise affects mood in people with depression
• ·Soccer team wins state championship and advances to national tournament
• ·A tech company released a new app that helps users learn a new language through games
• ·Researchers found that eating dark leafy greens can increase iron levels in anemic patients
• ·Scientists discovered a new species of frog in the Amazon rainforest
• ·Local authorities opened a new recycling center to promote waste reduction
• ·A small business owner started selling handmade candles online that shipped to 30 states
• ·Scientists developed a way to recycle plastic into building materials
• ·The local police department introduced a new community policing program