Home > School and Learning > By Subject > Science and Health > Astronomy > Moons of the Solar System

Slideshow Iconslideshows MORE

|

Moons of the Solar System

4 of 10
europajupiter

Europa


Unlike Callisto, Jupiter's moon Europa has very few craters, which adds to the evidence that the moon is geologically active and possibly has a liquid ocean not far beneath its icy surface. Imagine breaking ice cubes out of an ice tray. Any liquid water in the tray will try to fill in the cracks as it seeps out. The surface of Europa is very similar. If a crack forms in the ice, or a meteor punches a hole in it, the liquid underneath will quickly fill in the gap. This is why Europa has an almost uniform surface, marked by very few craters.

Fun Fact: Where there is water, there could be life. If life does exist on Europa, it is probably supported by undersea volcanic vents much like the ones that help life exist at extreme ocean depths of Earth.

Next: Ganymede

Infoplease

Provided by Infoplease—an authoritative, comprehensive reference website that offers an encyclopedia, a dictionary, an atlas, and several almanacs. Visit Infoplease.com to find more resources endorsed by teachers and librarians.

stay connected

Sign up for our free email newsletters and receive the latest advice and information on all things parenting.

Enter your email address to sign up or manage your account.

Facebook icon Twitter icon Follow Us on Pinterest

editor’s picks

highlights

Top 10 Group Halloween Costumes for Families
These store-bought and Pinterest-inspired Halloween costume ideas for groups are the perfect way to show off your creative side at your Halloween party or while trick-or-treating.

Kindergarten Readiness App Wins Gold
Our Kindergarten Readiness app won the Gold Award of Excellence in the educational category at the 2014 Communicator Awards. This valuable checklist comes with games and activities to help your child practice the essential skills she needs for kindergarten. Download the Kindergarten Readiness app today!

12 Spine-Tingling Halloween Movies for Teens
Are you looking for a movie with just a little bit of spook-factor for your teen? Check out these 12 spine-tingling Halloween movies!

Find Today's Newest & Best Children's Books!
Looking for newly released books for your child? Try our new Book Finder tool to search for new books by age, type, and theme, and create reading lists for kids!