The invisible ink formula used by East German secret police to pass messages during the Cold War has remained classified, until now.

Crushing milk at high pressures could help it last for seven weeks in the refrigerator without the off flavors associated with other long-lasting milks, researchers now report.

Diagnosing ailments just got easier. When stumped with something they don't know, doctors can turn to the internet search engine, Google.

Researchers have created a device that reduces the amount of water used during a shower by adding air to it.

Dr. Michael Holtzman carries a weapon: an immunity boost before flu season called "Hyper-Stat1".

Silicate-rich liquids that geologists call “melt” flow not only through small cracks and fractures as previously believed, but also through the crystalline structure of olivine in the Earth's mantle.