Now Playing: Great Galactic Ghoul and the Human Errors

Of humanity’s 40 attempts to explore Mars to date, the success rate has been a disappointing 50%, which has prompted some to wonder if there is a space monster out there with a taste for probes.

Decide for yourself with the Mars Exploration Family Portrait below and learn more about our track record, including the time the Mars Climate Orbiter (#31) made it all the way to Mars only to burn up in its atmosphere due to a mix-up between imperial and metric units.

(click to enlarge)

[Chart by Astrosaurus]

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