The postal service announced it would deliver packages on Sundays during the holiday season

Farmers used artificial intelligence to predict crop diseases before they spreadA study found that swimming for 30 minutes three times a week can improve heart health

The space agency successfully launched a satellite to monitor ocean currentsA coffee chain announced it will offer free refills for customers with reusable cupsThe city council approved a project to build a new public pool in the southern neighborhood

Archaeologists discovered ancient tools made from bone in a cave systemCar companies announced a partnership to develop self-driving shuttle services for cities

A drought in the southwest led to the cancellation of outdoor water use for landscaping

The Nobel Prize in Physiology or Medicine was awarded to researchers studying agingA study found that regular yoga practice improves flexibility and reduces back pain in office workers

The government announced a new grant program to support artists and cultural organizations affected by the pandemicA new mobile app was launched that helps users find and book eco-friendly hotels and travel experiences

A severe thunderstorm hit the city causing damage to trees and power lines and delaying airport flightsResearchers developed a new type of biodegradable plastic that breaks down in soil within four months

(责任编辑：周治平)