Astronomy Articles

The Sun is one of 100 billion stars in our Milky Way galaxy. Scientists estimate that the Sun is about 4.5 billion years old, or approximately halfway through its life cycle.

Our full Moon March 2015 guide gives you at-a-glance information: Moon phase dates, Best Days by the Moon, Moon facts, folklore, and more!

Native Americans full Moon names were created to help different tribes track the seasons. Think of it as a "nickname" for the Moon!  See our list of other full Moon names for each month of the year and their meanings.

Farmers, sailors, and other sky watchers have long used the Moon to predict the weather.

What is the influence of solar activity on the weather? Dr. Richard Head, who was the weather forecaster for The Old Farmer's Almanac for a quarter-century, answers this question and more.