A green comet will appear again in Earth's sky for the first time in 50,000 years. 一颗绿色彗星将再次出现在地球的天空，这是5万年来的第一次。 The American space agency NASA says the comet's last visit came during Neandertha...
Researchers in Norway say they have found what they believe is the world's oldest runestone a stone with ancient writing on it. 挪威的研究人员表示，他们发现了他们认为是世界上最古老的符文石一块刻有古代文字的石头。...
Researchers have wanted to know for years why the buildings made by the ancient Romans held up so well. 多年来，研究人员一直想知道为什么古罗马人建造的建筑如此坚固。 A new study finds that their concrete, a strong buildin...
A United Nations report has found that Earth's protective ozone layer is slowly healing itself. 联合国发布的一份报告称，保护地球的臭氧层正在缓慢自愈。 Ozone is a form of oxygen. 臭氧是氧气的一种形式。 In Earth's...
Some frogs found in South and Central America have the unusual ability to turn on and off their nearly clear, or transparent, appearance. 在南美洲和中美洲发现的一些青蛙具有不同寻常的能力，它们能够打开和关闭其近乎透...
The United Nations' weather agency reports that world temperatures are likely to reach dangerous levels within the next five years. The World Meteorological Organization, or WMO, released a report on the subject Wednesday. It said the 1.5 degrees Cel...
AI Tools Present New Risks in 2024 US Election The risk of misinformation influencing voters has long existed during elections around the world. But political experts warn that new artificial intelligence (AI) tools may create even more problems duri...
Bolivia Hopes to Popularize Electric Cars and Lithium Bolivia has developed a special program to make its electric vehicles more popular so the country can one day put an important resource it has to use. On a recent, cold morning, Dr. Carlos Ortu#24...
Children and Social Media: Some Advice for Concerned Parents With so many social media services aimed at children, parents and families need help. Some are seeing their children's mental health suffer despite connections with friends on Instagram and...
Joe Seaman-Graves is the city planner for the small town of Cohoes, New York. He was in search of a less costly way of providing electricity to the town. There was no extra land to build on. But Cohoes does have a nearly 6-hectare water reservoir. 乔希...
Scientists Observe Dying Star Swallowing Planet for the First Time Scientists say they have observed a dying star swallowing a planet for the first time. Astronomers recently reported the observation of what appeared to be a large gas planet being ea...
A new way of pulling DNA from soft materials such as bones, teeth and tusks makes it easier for scientists to find out about objects made by ancient people. As a result, researchers are working to learn about those who made and wore objects taken fro...
Scientists have started vaccinating wild koalas against chlamydia in New South Wales, Australia. The disease causes blindness, infertility and death. 科学家已经开始给澳大利亚新南威尔士州的野生考拉接种衣原体疫苗。这种疾...
American electric carmaker Tesla has broken ground on a new lithium processing center it says will support the production of up to 1 million vehicles by 2025. 美国电动汽车制造商特斯拉的一家新的锂精炼工厂破土动工，该公司表...
Scientists have released new information about an area around a bright star called Fomalhaut in the Milky Way galaxy. The observations, made by the James Webb Space Telescope, provide details about three rings, or belts, of debris orbiting Fomalhaut....
