A city started a composting program for residents that turns food waste into garden fertilizer

The space agency announced plans to study the surface of Mars for signs of past lifeLocal businesses donated goods and services to a charity auction benefiting a children’s hospital

The United Nations released a report on the effects of climate change on coastal communitiesA cyclist set a new national record for the fastest time in a 100-kilometer raceA library added new audio books and e-books to its collection for users to borrow online

Researchers found that eating fish high in omega-3 fatty acids can improve brain healthThe city announced plans to repave 50 miles of roads and repair potholes

A tech company launched a new smartphone with a better camera and longer battery life

A thunderstorm knocked down trees and power lines in several residential neighborhoodsAn airline announced it would offer free checked bags for military personnel and their families

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 America

(责任编辑：卓亚君)

• ·A team of scientists created the first 3D-printed organ (a liver) that can function in a lab environment for up to a month
• ·A famous singer announced a tour to promote their new album with shows in 30 cities
• ·A music festival raised $2 million for local homeless shelters through ticket sales
• ·Bird watchers spot rare migratory bird in local wetland preserve
• ·A restaurant started offering happy hour specials on appetizers and drinks
• ·Research indicates that laughter therapy reduces pain in patients with chronic conditions
• ·A new TV series based on a comic book became a hit with both critics and audiences
• ·A supermarket chain started selling pre-packaged meal kits for four people at $25 each
• ·A snowstorm in the northwest dumped two feet of snow closing schools and government offices
• ·Running club organizes 5k race to support homeless shelter
• ·A popular music festival announced its lineup featuring 50 artists from around the world
• ·A school district updated its curriculum to include more lessons on climate change
• ·A pet store started offering puppy training classes for new dog owners
• ·Research shows that art therapy helps children cope with trauma
• ·Scientists at a top university discovered a potential new treatment for a rare genetic disease using advanced gene-editing tools
• ·A major music festival was canceled due to safety concerns after a severe weather warning was issued