This planet has a giant volcano three times as tall as Earths tallest mountain.It has a canyon that would stretch across most of the United States. And it iscov... » 

This planet has a giant volcano three times as tall as Earths tallest mountain.It has a canyon that would stretch across most of the United States. And it iscovered with craters including an enormous one that is more than 1200 mileswide. What is this place? It is Marsthe red planet that is Earths nextdoorneighbor. Learn amazing facts about Mars in this fastpaced glimpse into thefuture of science. «