The sensor has accurately detected date-rape drugs in drinks 100 percent of the time.
Conservationists believe many of the criminal networks targeting wildlife are also involved in illicit arms and drug smuggling.
Will bootprints in the Martian soil be a part of our future, or will the interplanetary trip prove too hazardous for humans?
Often called the "clap," the infection had been easily treatable -- until now.
Scientists craft an artificial windpipe from the patient's own stem cells.
Some argue that making performance enhancing drugs legal could make the sport of cycling safer.
Nearly 30 million people have been killed by AIDS and more than 33 million have the virus that causes it.
Sheen has been telling the world he has cured himself of addiction. Experts say it's possible, but can be problematic.
The subject may be unpalatable, but animal research has improved the quality of human life.
The drug trade increases deforestation, but a new assessment also finds national parks can buffer the effect.