Most people are born with two sets of teeth.
Reducing some climate pollutants could save millions of lives, says a new report by the World Health Organization (WHO).
What does the average 15-year-old do with her free time?
Emojis are different from emoticons.
Scientists in England are using two self-directed water vehicles to explore the animal and plant life of theCeltic Sea.
The first of the 2015 Nobel Prizes has been announced.
Scientists have found strong evidence of salt water on the planet Mars, the U.S. space agency NASA announced Monday.
A meteor exploded over the sky in Thailand in a bright streak of gold.
The American company Apple on Wednesday demonstrated its largest-ever tablet computer, the iPad Pro.
A gunman killed two members of a television news crew in the United States earlier this week.