Astronomy Articles

Find Full Moon May 2014 dates, best days for the Full Flower Moon, folklore, and more.

In the latter half of 2010 Jupiter will be making it's brightest, closest appearance in over 45 years! Find out why Jupiter will be so close to Earth, and where you can see it! Then, check out our fascinating facts about Jupiter.

Here’s a little something deliciously arcane for those who long for the “simplicity” of life before computers . . .

Listed in the Astronomical Glossary of The Old Farmer's Almanac is the word Epact, expressed as a number from 1 to 30.

Find the April Pink Moon phases—plus, best days by the Moon, full Moon names, and more.

Whether you're  a beginner sky watcher or a serious astronomer, here are astronomy resources that will help you watch the heavens.

It's the Snow Moon! Find February Full Moon phases for 2015—plus, best days by the Moon, full Moon names, and more.

The following is a explanation of spring and neap tides in relation to lunar and solar cycles.

What are some of Earth's greatest sky events? Here's the Almanac's take on the most spectacular, memorable, and even scary sky phenomena visible to the naked eye since 1792.

Saturn, the sixth planet from the Sun, is named for the Roman god of agriculture.

Here at the Almanac, we believe that solar science, the study of sunspots and other solar activity, can influence weather here on Earth. In this article, we explain the basics of solar activity, solar cycles, and what's up with the Sun now.