Uranus and Neptune are often called "ice giants." This is based on the theory that they were made from materials that easily freeze in space, like water and ammonia. However, this label does not come from direct observations, since no spacecraft has visited the two giants since Voyager 2 in the 1980s. Instead, it is drawn from computer models built using the planets’ sizes, masses, densities, and gravity fields. Now, a new study by scientists at the University of Zurich is challenging this idea. It suggests that the two planets may contain more rock than ice....
Read news articleThanksgiving, celebrated annually on the fourth Thursday of November, is one of the most anticipated holidays in the United States. The tradition dates back to a harvest feast shared by early European settlers and Native Americans in 1621. The holiday, observed on November 27 this year, centers on delicious food and fun traditions. Here is a brief history of how some of these customs began....
Read news articleOn October 15, 2025, American mountaineer Jim Morrison became the first person to ski down Mount Everest’s Hornbein Couloir. The deep, narrow chute begins at roughly 26,000 feet (8,000 m) on the mountain’s north face, west of the summit. Most of it is extremely steep, with slopes that reach about 60 degrees near the top. Morrison’s party was only the sixth expedition to climb that route and the first successful one since 1991....
Read news articleThe Karowe Mine in Botswana, Southern Africa, is famous for producing large, high-quality diamonds. Previous notable finds include the 1,758-carat Sewelô and the 2,492-carat Motswedi, the second-largest diamond ever found. However, the diamond revealed on October 15, 2025, has captured the attention of gem experts and collectors worldwide. Weighing 37.41 carats, it is half pink and half clear!...
Read news articleThe federal government reopened on November 13, 2025, ending a 43-day shutdown, the longest in US history. This followed President Donald Trump’s signing of a temporary funding bill late on November 12, which let federal employees return to work and allowed government services to resume....
Read news articleOn November 27, 2025, most Americans will celebrate Thanksgiving with big feasts, parades, and "Turkey Trot" races. Many other countries also have celebrations that honor gratitude, family, and the harvest. Here are four Thanksgiving-like festivities from around the world....
Read news articleThe pachycephalosaurs are among the most mysterious dinosaurs of the Cretaceous period. Aside from their famous dome-shaped skulls, very little is known about these two-legged plant-eaters. That is because most fossils found so far consisted only of skull fragments. That changed on September 17, 2025, when scientists revealed the discovery of the most complete — and oldest — specimen of this dome-headed dinosaur....
Read news articleThree taikonauts — the term for Chinese astronauts — aboard China’s Tiangong Space Station have had their trip home postponed after a piece of space debris struck their return capsule. Chen Dong, Chen Zhongrui, and Wang Jie were set to return to Earth on November 5, 2025, after handing over duties to the Shenzhou-21 mission crew. But just hours before departure, engineers found signs of damage to the Shenzhou-20 spacecraft, forcing officials to delay the trip....
Read news articleHoney bees are vital to our food supply. They pollinate the flowers of many fruits and vegetables, supporting about 35 percent of the world's crops. In the US alone, the tiny insects help produce $15 billion worth of food each year....
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