To misquote Oscar Wilde, to lose one mission may be regarded as a misfortune; to lose two looks like carelessness.

Here’s what you’ll learn when you read this story: There was just one problem: The orbiter would never reach Mars. Superficially, everything seemed to be going according to plan. Lockheed Martin was ...

(CNN) — Here’s a look at the exploration of Mars. The United States, Soviet Union and China are the only three countries to land a spacecraft on Mars. There have been nine successful US Mars landings: ...