How do you measure something that destroys everything it touches? That's an essential question for tornado researchers. After he narrowly escaped the largest twister on record—a two-and-a-half-mile-wide behemoth with 300-mile-an-hour winds—National Geographic Explorer Anton Seimon found a new, safer way to peer inside them and helped solve a long-standing mystery about how they form.
Out of all the Coronavirus cases in the world one out of every five, are in the United States. Despite hard lessons in the spring and restrictions over the summer infections are rising steadily. New York City schools are closing today and students will be learning from home. Total cases in the US have passed 11 million. Over 250,000 have died. And a growing number of Americans are uninsured. So why is the US, an economic powerhouse, struggling more than any other country in the world? Is it the fault of outgoing-president Donald Trump? And can incoming-president Joe Biden clean up the mess? Bangladesh has launched what is thought to be the world's largest so-called "climate refugee" project in Cox's Bazar, to house a growing number of people forced to flee their homes by climate change and a failing economy.
More than 400,000 people move to the capital, Dhaka, each year.
The World Bank says that number could exceed 13 million by 2050.
Al Jazeera's Tanvir Chowdhury reports. The world's largest Catholic pilgrimage has been cancelled due to a surge in COVID-19 cases.
About 10 million people visit the Basilica of Our Lady of Guadalupe in Mexico City every year.
But this time, church and government officials have asked Catholics to worship at home and are enforcing tight restrictions on the religious gathering.
Al Jazeera's Manuel Rapalo reports from Mexico City. Hopeful Spaniards have queued outside for hours to buy tickets for what is considered the world's largest lottery. The El Gordo Christmas jackpot, held each year on December 22, is a tradition that dates more than 200 years. This year nearly 2.5 billion euros in prizes are up for grabs.