Older adults who breathe in very small particles from air pollution for even a day or two are more likely to be hospitalized for many diseases, a recent U.S. study suggests. Researchers examined particles called PM2.5, a mixture of solid particles an...
Scientists are investigating a massive die-off of mussels in a major river in the southeastern United States. They hope to learn the cause. In 2016, fish and wildlife officials discovered a big drop in the mussel population in the Clinch River. The r...
Ancient Painting Suggests Societal Equality in Teotihuacan The remains of artwork found at what was once the largest city in the Americas has added to evidence that even commoners who lived there enjoyed the finer things in life. Each year, millions...
A Ukrainian security researcher has reported finding a database with the information of more than 267 million Facebook users on the open internet, the Associated Press reports. 据美联社报道，乌克兰一名安全研究人员报告称，他在开...
This week we answer a question from Yang in China. Yang writes, Question: I'm confused with the be verb and the do verb. Which one should I use, especially when making a question? Yang, China Answer: Dear Yang, Do you want to learn how to ask questio...
Outdated, Dangerous Childbirth Methods Remain Common in Europe When Clara Massons was giving birth to her son, a midwife climbed onto her bed and pushed down on her stomach. The woman was a specialist on childbirth. She explained to Massons that she...
The United Nations says the war in Afghanistan has resulted in more than 100,000 civilian casualties in the past ten years. The international body is asking all sides to take steps to end the 18-year conflict. The announcement comes as Taliban insurg...
People in Indonesia and Thailand gathered on Thursday to mark the 15th anniversary of the Indian Ocean tsunami. The tsunami hit on December 26, 2004. It was caused by a massive 9.1 earthquake off Indonesia's Sumatra island. The huge ocean wave killed...
United States army suicide rates have historically decreased during wartime. But a new study of U.S. records suggests that trend appears to have changed direction, with rates rising in recent years. Researchers examined nearly 200 years of U.S. army...
The leader of the highest court in the United States will likely receive a lot of attention next month. In January, Chief Justice John Roberts will supervise the trial of President Donald Trump in the U.S. Senate. Lawmakers there will decide if Trump...
During 2019, we covered some big developments involving computer and device technology. We also reported on growing opposition to facial recognition systems and warnings by the inventor of the World Wide Web about the internet's future. This handout...
If you are not someone following the ups and downs of bitcoin, you probably have not heard about a big event next year. It is called the halving. It will cut creation of the cryptocurrency by 50 percent. A cryptocurrency is any form of money that exi...
A report says the number of robots being used in workplaces across the United States doubled from 2009 to 2017. Most of the robots worked in manufacturing operations across America's Midwest, the reportsaid. It noted that the effect robots had on man...
A Success Story: From Cleaner to Leader Reyes Guana, a son of Mexican immigrants, proves the saying: Where there's a will, there's a way. In other words, if you want something badly enough, and work hard enough, you can make it happen. 墨西哥移民之...
NORAD Follows Santa Claus Around the World Children around the world want to know where a happy old man and his sleigh full of gifts are on Christmas Eve. 世界各地的孩子们都好奇圣诞前夜意为快乐的老人和他装满礼物的雪橇的行...
