The Conversation

Physicists consider black holes one of the most mysterious objects that exist. Ironically, they’re also considered one of the simplest. For years, physicists have been looking to prove that black holes are more complex than they seem. And a newly approved European space mission called LISA will help with this hunt.

Eighty years ago, on a day now known as D-Day, thousands of Allied soldiers crossed the choppy waters of the English Channel by air and sea to land on beaches and coastal areas of Normandy, France, to destroy the Nazi invaders and defeat Hitler’s regime. Within the military collections of the National Museum of American History, several artifacts collected over the decades help tell the story of Omaha Beach and the invasion landings on D-Day.

You can spot them in the streets of Paris or at fashion events in London, Milan, Brussels or Dubai. Most are black African men with sharp outfits designed and chosen to get them noticed. Known as “Sapeurs” – the name comes from the Society for Ambience and Elegance (Sape) and from French slang “se saper”, “to dress up” – these figures stand out with their offbeat and baroque sartorial style.

Colombia’s is seen as the most comprehensive peace accord that has been signed to date. It considers issues ranging from security to social justice and political participation, in great detail. The accord acknowledges that a peaceful postwar society requires not only respect for human rights but also “protection of the environment, respect for nature and its renewable and nonrenewable resources and biodiversity.”

The U.S. Drug Enforcement Agency announced in late April 2024 that it plans to ease federal restrictions on cannabis, reclassifying it from a Schedule I drug to the less restricted Schedule III, which includes drugs such as Tylenol with codeine, testosterone and other anabolic steroids. Similarly, the FDA granted a breakthrough therapy designation to psilocybin to expedite drug development. Preliminary studies suggest it may have substantial therapeutic value for treatment-resistant depression and major depressive disorder.

Concern in Tehran over the death of Iranian President Ebrahim Raisi may extend beyond the potential human tragedy of the crash. The change forced by it will have important implications for an Iranian state that is consumed by domestic chaos, and regional and international confrontation.

America’s first large-scale offshore wind farms began sending power to the Northeast in early 2024, but a wave of wind farm project cancellations and rising costs have left many people with doubts about the industry’s future in the U.S. Altogether, projects that had been canceled by the end of 2023 were expected to total more than 12 gigawatts of power, representing more than half of the capacity in the project pipeline. So, what happened, and can the U.S. offshore wind industry recover?

Since the start of the war in Gaza, Israel, Hezbollah and other armed groups in Lebanon have exchanged almost 5,000 attacks across the border. Lebanon is being pulled into a war it cannot afford. But the country’s weak state has little power against the militias that operate within its territory, among them a private militia named Jnoud al-Rab (Soldiers of God). It is a far-right, Christian group made up primarily of young working-class men who see themselves as “guardian angels.”