The Greeks had it figured out that the earth was round. How did they manage it? Learn more on this Moment of Science.
Enjoy star gazing?Then this Moment of Science is for you!
Ever wonder which Pole is colder? Find out on this Moment of Science.
Eating snow to obtain water is metabolically expensive–it would take too much energy to melt down enough snow. Consequently, polar bears have evolved so that they don’t need to drink free water.