9+ hour, 3+ min ago  (957+ words) Animals cannot explain what they are doing, or why. For decades, scientists studying mouse behavior have watched long stretches of video and labeled each action by hand, one frame at a time. The work is slow, and it leans heavily…...

3+ week, 1+ day ago  (842+ words) Counting tells you how much. For years, that one reading guided the study of extracellular vesicles, the tiny packets cells shed into the blood. Each protein's amount stood in for whatever the cell was doing. A new study says the…...

1+ mon, 2+ day ago  (768+ words) Sharp, rational learners win. For decades, models in economics and evolutionary biology have assumed that the faster you identify a winning strategy and commit to it, the better you perform against everyone else. A new study suggests that assumption does…...

1+ mon, 4+ day ago  (716+ words) Most people remember teachers by more than lessons. One teacher made a hard subject feel possible. Another made the room tense before anyone opened a notebook. Students sense a teacher's emotional state, even if they cannot name it. The research…...

1+ mon, 6+ day ago  (882+ words) Dark energy has one job: explain why the universe is flying apart faster and faster. The idea is so successful that it appears in every cosmology textbook and is thought to make up roughly 70 percent of the cosmos. The evidence…...

1+ mon, 1+ week ago  (897+ words) Four terabytes of data per hour. That number comes not from a supercomputer or a satellite, but from a pair of microscopes running around the clock in a windowless room at Berkeley, filming the inner lives of living cells. The…...

1+ mon, 2+ week ago  (858+ words) In 1950, the British mathematician Alan Turing proposed a deceptively simple challenge: could a machine ever hold a conversation so convincingly human that people couldn't reliably tell the difference? For decades, the answer was no." A new study from the University…...

1+ mon, 2+ week ago  (394+ words) AI-powered handheld microscope called Precision View can spot cancer cells and blood vessel changes instantly using non-invasive imaging....

1+ mon, 3+ week ago  (876+ words) Preclinical drug studies often force researchers into a difficult balancing act. Scientists want to use as few animals as possible for ethical reasons. But when mouse studies get too small, the statistics can start to fall apart. Real treatment effects…...

1+ mon, 3+ week ago  (841+ words) Something happens when an experienced chemist looks at a route someone else designed. Within seconds, they'll often say it won't work " not because they ran a calculation, but because the order of decisions just looks wrong. Getting software to replicate…...