According to NASA, the asteroid has no chance of hitting Earth.
One of the major ways we get sick is we touch surfaces out in the world, many made of metal or plastic.
Scientists said they have found evidence of a giant planet far out in our solar system.
British scientists say they have found the oldest known evidence of war.
Scientists are developing a medical device that could tell them more about the human body, and help them develop more-effective treatments for cancer, heart disease and brain disorders.
Apple says it will fight the U.S. government about sharing information from the iPhone used by a shooter in a deadly attack in California.
The White House is officially on Snapchat.
Researchers at Virginia Tech University have been studying how dogs drink.
A huge percentage of bird species are in danger because their habitats, or homelands, are disappearing.
Three university students in Santiago, Chile have developed a plant-powered device to charge their mobile phones.