Search Kids Discover

The Moons of Mars

  • September 15, 2013
  • By KIDS DISCOVER

Mars’s moons, Phobos and Deimos, were discovered in 1877 by U.S. astronomer Asaph Hall. He named them for the sons of the Greek god of war, Ares (known to the Romans as Mars). Phobos is closer to Mars and orbits three times an Earth day, while Deimos takes 30 hours.

About the author

Kids Discover For over 25 years, we’ve been creating beautifully crafted nonfiction products for kids. With a specialty in science and social studies, our team of talented writers, award-winning designers and illustrators, and subject-experts from leading institutions is committed to a single mission: to get children excited about reading and learning.