One man's H2O is another man's treasure
Groundwater in many countries, including the U.S., has naturally high levels of arsenic.
Prolonged exposure to high concentrations of 4-methylcyclohexane methanol can cause headaches, eye and skin irritation, and difficulty breathing.
But how does it taste with other fluids? Grapefruit juice? Motor oil? Liquid nitrogen?
Since the beginning of the month, officials have fished out 16,000 pig carcasses found in the river that serves tap water to Shanghai. Is it really still safe to drink, as officials say?
A strange phenomenon was shredding Glen Canyon Dam. Here's how it was saved.
The random-number race is on
New research strengthens the link between physical attributes and baby-making potential
A system of visual icons could cut down on doctors' mistakes
The amount of water on Earth is fixed, but everything else is changing fast
Modified military Humvees, now in testing, turn diesel exhaust into fresh drinking water for soldiers
The liquid pharmacy in your glass, and why you shouldn't be too concerned
The story of how one of the most polluted waterways in America came to be located in one of the country's most expensive neighborhoods. Also: dysentery, cancer, and arsenic poisoning.
Using in-car monitoring apps to keep an eye on things like blood sugar
A real-life Super Size Me, only for 16 years instead of a month. Want to take a guess what happens to your body?
Turning trash into a lifesaver
Our experts tackle your toughest science questions