How Much Do You Know About Water?
Learn more about water with the Smithsonian Science Education Center.
Around December 21, the Northern Hemisphere tilts the farthest away from the Sun. This is called the northern winter solstice, and it is when we have the least amount of daylight of any time of the year.
Did you know that the Smithsonian's first Secretary, Joseph Henry, was also credited as the father of weather forecasting? Learn how Henry developed the first national weather forecasting system with the help of Smithsonian volunteers and telegraphs.
Have you ever thought that the leaves changing color was the first sign of autumn? Actually, other factors trigger the leaves to change color!