A fresh tomato is 93.5 percent water. A fresh baby girl or boy is 75 percent water. A banana, 74 percent. We all start wet, and then, inevitably, dry. A 1-year-old baby carries 10 percent less water; a male adult 15 percent less. Life is a slow evaporation, with some curious exceptions.
Astronomers will turn skyward to glimpse ISON, an unusual comet from the outermost edge of our solar system that is now plunging toward the sun. ISON could yield clues to the formation of the solar system, and may become visible to the naked eye in December — if it survives.
With more and more carbon dioxide spewing from China, India and other rapidly growing nations, some people are asking why the U.S. should bear the expense involved in slashing its own emissions.
Previous estimates of the climate-warming gas were based on the rough number of methane-emitting sources on the ground — such as factories, refineries, stoves, swamps, landfills and cattle herds. But by directly measuring levels of methane in the air instead, a new study puts the total much higher.
Developmental psychologists are trying to figure out what very small children know and when they know it. The answer: a lot, and a lot earlier than you think. One experiment finds that 18-month-olds can reason abstractly when sorting blocks, well before they are able to explain it.
The Food and Drug Administration has sent a warning letter to the company 23andMe demanding that its saliva test be taken off the market. The company claims the test can detect the genetic likelihood of more than a hundred diseases — a claim the FDA says the company has not proved sufficiently.
Making your own cheese and yogurt is all the rage these days. Now a scientist has taken the DIY craze to an entirely new level. She and an artist have made cheeses using the microcritters on their own skin, as well as those from famous folks. The curds are on display at a museum.