Astronomy

Get facts about astronomy. Learn about the moon, sun, stars, planets, galaxies, and more.


Astronomers believe it's possible for a moon to have a moon of its own.
We all know planets orbit stars and moons orbit planets. Have you ever wondered whether a moon can have a moon of its own (a submoon)? Theoretically, the answer is yes, but there is a good reason why we haven’t discovered any submoons around moons in our own solar system. […]

Can a Moon Have a Moon?


The average distance between the Earth and the Sun is about 93 million miles. (NASA)
All of the planets, comets, and asteroids in the solar system orbit the Sun. The average distance between the Earth and the Sun is 92,955,807 miles (149,597,870 km). Most people just round it up to 93 million miles. This distance is called an astronomical unit or AU and is used […]

How Far Is the Sun From Earth?


Full Moon Names Word Search
A full moon brings out the romantic in people. Throughout our history, we’ve given the full moon names depending on the time of year, color, or other astronomical events. This Full Moon Names word search has 30 different traditional names for the full moon. Find the different full moon names […]

Full Moon Names Word Search



Star Names Word Search
When you look at the stars, most people recognize there are a lot of them. The most common means of distinguishing one star from another is to name them. This star names word search is a great way to familiarize yourself with the names of thirty of the brightest stars […]

Star Names Word Search



If you want to hear the aurora sound, listen on a calm, clear night. (Luke Stackpoole)
Do the Northern Lights or aurora borealis make a sound? The answer is yes. However, not everyone hears the sound and not all aurora produce it. Eyewitness Accounts of the Aurora Sound Several credible witnesses in both the Northern Hemisphere (aurora borealis) and Southern Hemisphere (aurora australis) report hearing a […]

Does the Aurora Borealis Make a Sound?