Axions | Hypothetical Dark-Matter Particles Proposed to Clean Up the Fine-Tuning Problem in Cosmology







On the Friday before Memorial Day, on the eve of a long weekend, the Trump administration announced that it was further gutting legal immigration. The Department of Homeland Security didn't use this language. "This policy allows our immigration system to function as the law intended instead of incentivizing loopholes," the agency said on X. "The era of abusing our nation's immigration system is over." A press release from US Citizenship and Immigration Services, the agency that handles legal immigration, provided few details. Following the Trump playbook, DHS seemingly intended to bury this news by announcing it at a time that hardly anyone …

When Lego announced its tech-packed Smart Bricks at CES, we were impressed by the potential - enough to give it our Best in Show award. But when the first Star Wars sets actually launched in March, we were less enamored. All that promise of clever interaction and creative play ultimately boiled down to a few voice barks and flashing lights, with the smartest features we'd seen at CES nowhere to be found.
Today, Lego announced the second generation, with 12 new sets launching this summer, promising Pokémon play and some of the smarts we'd been missing. After a few hours training and battling with the new sets this morning, it's clear the Sm …