Scientists at the University of Pennsylvania have developed some of the world's smallest robots. The tiny, light-powered robots are smaller than a grain of salt. But they have a built-in computer and can control their own movements as they swim through water.
Strong reactions have followed the killing of a second US citizen in Minnesota by US government agents. Large, widespread protests and strikes took place this weekend. The US government is in a partial shutdown, and US President Donald Trump's government shows some small signs of changing its approach.
Gladys West, whose work helped lead to the creation of GPS, has died at age 95. Ms. West, a Black mathematician and computer programmer, grew up working on a farm in Virginia. Her efforts for the US Navy helped make GPS possible. But until recent years, very few people knew of her work.
On January 25, rock climber Alex Honnold became the first person to climb Taiwan's Taipei 101 skyscraper without using any safety equipment. The 1,667-foot (508-meter) climb took the American about an hour and a half to complete. The event was shown live on the internet.
A massive winter storm has hit the US, bringing record-breaking low temperatures and huge amounts of snow and ice. The deadly storm left hundreds of thousands of people without power, and made travel nearly impossible in many areas. The storm's effects are being felt from the South all the way to the Northeast.
Scientists have been tracking the huge iceberg A23a for years. What was once the world's largest iceberg is rapidly shrinking in size, and is covered with blue water from melting ice. After 40 years, the massive iceberg is breaking up and is soon expected to disappear completely.
Tensions are running high in Minneapolis, Minnesota and other cities across the US following the killing of a woman by an ICE agent. Many people have called the killing a "murder". The US government has defended the ICE agent and has sent even more agents to the city.
US President Donald Trump's efforts to take control of Greenland are causing great concern in Europe. Despite strong opposition, Mr. Trump has continued to push to take over the island, which belongs to Denmark. His recent threats of tariffs have seriously raised tensions between the US and European countries.
Scientists have long known that some dogs can learn the names of lots of toys. Now, a recent study shows that these dogs can even learn the names of new toys just by listening in while people talk about the toys. This is a skill that young children have, but dogs usually don't.
Scientists have released a new report showing that in 2025, the world's oceans heated up more than ever. The oceans have set new records for heating eight years in a row. The scientists say this is a clear sign that the planet is warming because of human actions. The effects will last for hundreds of years.
People across Iran have been protesting for over two weeks. The protests began over the economy, but have grown into larger protests against the government. The government has responded violently, leaving nearly 500 people dead. US President Donald Trump has suggested that the US might take action.