Enjoying EarthSky? Subscribe.

110,803 subscribers and counting ...

By in
on Nov 23, 2012

Animation of Mars in retrograde

An animation showing the retrograde motion of Mars in summer of 2003. Credit: Eugene Alvin Villar (via Wikipedia)

An animation showing the retrograde motion of Mars in summer of 2003.  Credit: Eugene Alvin Villar (via Wikipedia)

Animation of Mars in retrograde