Join Donate

Blogs

Author

All

Date

All

Keyword

All

The Orbital Dance of Epimetheus and Janus

Emily Lakdawalla • February 07, 2006

Saturn is surrounded by a crowded family of rings and moons, and two of those moons -- Epimetheus and Janus -- orbit Saturn so close together that it seems as though their different orbital speeds should make them crash into each other.

MER
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

Mars
Every Mission Counts

Take action today and your gift will go twice as far to increase NASA budgets and advance space priorities.

Donate

You are here: