Immigrant protections have halved kids’ mental health problems
A programme that protects some US immigrants from deportation has reduced anxiety disorders in their children. But Donald Trump may scrap the scheme next week
Meet the turtles surviving an invasion of enormous tractors
The eastern painted turtles must now live among enormous, noisy machinery – and studying them is offering clues to how animals survive alongside heavy industry
How US diplomats may have been attacked by sonic weapons in Cuba
Acoustic weapons are shrouded in mystery - now, US and Canadian diplomats seem to be suffering from the symptoms of an attack. Here's what could have happened
Al Gore’s Inconvenient Sequel could just make climate rift worse
Perhaps the veteran Democrat should have stayed in the wings for the follow-up to hit documentary An Inconvenient Truth, suggests Adam Corner
US plan to cut smoking with non-addictive cigarettes has flaws
A bold proposal in the US to cut cigarette nicotine to sub-addictive levels is interesting, but there are big challenges to making it work, says Linda Bauld
LA’s endangered pumas to be saved by a $60m bridge over highway
Pumas in Santa Monica are trapped in small areas bisected by big roads, on which many die – but an ambitious wildlife crossing promises to change that
Hot, sleepless nights will get more common with climate change
People in the US stand to lose sleep as the climate warms – and those in hotter countries will be harder hit
Republican-led US House votes to repeal Affordable Care Act
The bill now needs to be debated in the Senate, but could cost millions of people their health insurance if it passes
NASA and ESA join forces to build life-seeking Europa lander
The space agencies just announced a bold plan to search for aliens on Jupiter’s icy moon through a joint American-European mission
On the ground in Washington at the March for Science
Thousands rallied and marched in the rain in the US capital to stand up for science and its place in politics