Subscribers: LOG IN to access quizzes, worksheets, and more! Not a subscriber? SUBSCRIBE!
Scientists in the Utah desert are trying to find out if humans would be able to survive on Mars. For two weeks, the researchers have limited amounts of oxygen, water, food and...
Read the winning rhymes from the 2013 TFK Poetry Contest, judged by Kenn Nesbitt
Here are 10 outstanding leading ladies. Who do you think was the most important woman of the past two centuries?
View photos from the effects of a a 10-ton meteor that exploded several miles over Russia on February 15
© 2013 Time Inc. All Rights Reserved.