Ice cubes float in water because they’re less dense than the liquid. But a newfound type of ice has a density nearly equal to what’s in your water glass, researchers report in the Feb. 3 Science. If ...

Science is made up of cliques. Throughout Alex Shneider’s career, he has noticed certain people drawn to certain types of science, and certain types of grant proposals always being funded. Shneider, ...

Researchers identified some 3,300 types of brain cells, an order of magnitude more than was previously known, and have only a dim notion of what most of them do. By Carl Zimmer An international team ...

Dr. Mark Lindsay was 5 years old when he first learned that tree trunks were brown. "Up until that point, I believed leaves and trunks were all green. Just lighter and darker shades," Mark said. Mark ...

Precipitation comes in all forms: rain, sleet, freezing rain, and snow. Some even count virga, which becomes a gas and evaporates before it reaches us as raindrops. Hail also exists but forms ...