2+ mon, 3+ week ago   (986+ words) On Earth and in space, this line marks the boundary between frozen and non-frozen A snow-capped mountain in the French Pyrenees shows that the snow cover gives way to bare ground at a specific elevation. This is an example of…...

4+ mon, 1+ week ago   (1803+ words) ‘Ghost references’ and other hallucinations also haunt research journals A citation includes information about a book, article or other source of information. Students often need to include citations in reports. But beware. Chatbots sometimes invent or garble citations, offering “sources…...

8+ mon, 3+ week ago   (1405+ words) They’re the first working genomes — complete sets of DNA — ever designed by machines Two AI models generated — from scratch — multiple genomes for bacteria-killing viruses. In lab dishes, some of these AI-designed viruses were more effective assassins of bacteria than a…...

6+ mon, 3+ week ago   (1809+ words) Most evolved slowly — some over centuries — which shows math to be a living language Modern math relies on a whole zoo of notations and symbols to stand in for words. But they didn’t exist for much of math’s history. Historians…...

5+ mon, 2+ week ago   (622+ words) The designs of flowers on Halafian pottery were made almost 8,000 years ago. Some show regular patterns in the number of petals. Floral designs on pottery made almost 8,000 years ago may be more than just art. They appear to be the…...

9+ mon, 3+ day ago   (1767+ words) You can defy gravity using sound waves, magnetism or even electricity In Avatar: The Last Airbender, waterbenders can levitate liquid water and solid ice. With a simple swish-and-flick of his wand, Ron Weasley yanks a troll’s club high above its…...