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.

highlights

Top 10 Sweet 16 Birthday Gifts
Your daughter's sweet 16 is a big milestone in her life. Celebrate this special occasion with one of these top gifts for girls turning 16.

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, brought to you by Galactic Hot Dogs.

Printable Lists of the Top 100 Baby Names
Need help with baby name ideas? Use our printable list of the top 100 girl names and top 100 boy names of 2015 to help you brainstorm and narrow down your favorites.

Registered for Kindergarten — Now What?
Wondering what to do now that you've signed your child up for kindergarten? Try our award-winning Kindergarten Readiness app! This easy-to-use checklist comes with games and activities to help your child build essential skills for kindergarten. Download the Kindergarten Readiness app today!

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 Facebook icon Follow Us on Pinterest

editor’s picks