Dehydration can be deadly; the amount of water you need to stay healthy depends on a variety of factors.
When dehydrated, the body makes it difficult to eat in order to conserve water.
Scientists are engineering a method for turning solar energy into fuel.
The light in Earth's atmosphere may reflect signs of extraterrestrial life.
Data from the Rosetta mission, the Mars rover and the Herschel space observatory point to water's extraterrestrial origins.
Icicles are lopsided formations, by nature. Here's why:
The scientists found that drinking when thirsty activates the orbitofrontal cortex—an area of the brain linked to emotional decision making.
Chances are, you're consuming drugs without even knowing it.
Despite weighing tons, clouds seem to free-float in the air. How do the billowy marvels stay up in the sky?
Could the frigid waters of Jupiter's moon Europa host alien life?