Everyone knows that arithmetic is true: 2 + 2 = 4.But surprisingly, we don't know why it's true.By stepping outside the box of our usual way of thinking about numbers, my colleagues...
Since 2006, the amount of heat-trapping methane in Earth's atmosphere has been rising fast and, unlike the rise in carbon dioxide (CO₂), methane's recent increase seems to be driven by biological emissions,...
There's a whole world inside your gut, made up of mostly harmless microbes that reside in the gastrointestinal tract.Called the gut microbiome, this dazzling collection of bacteria and other microorganisms has been...
Scientists have identified the maximum mix of heat and humidity a human body can survive.Even a healthy young person will die after enduring six hours of 35-degree Celsius (95 Fahrenheit) warmth when...
A research team in France found the Nile crocodile reacts to the distress cries of many different baby mammals, including humans.Their response is sensitive to specific acoustic details, which may help the...
Scientists keep peeling back new layers of life on our planet like a seemingly endless onion.Most recently, aquanauts on board a vessel from the Schmidt Ocean Institute used an underwater robot to...
The soothing sounds of binaural beats are thought to sharpen focus when cramming information into our chock-a-block heads. But a new study has found that binaural beats might actually hinder learning, not...
We've been landing people on the Moon since 1969, but as we start to explore the lunar surface, how will astronauts find their way around? We need a global navigation satellite system...
