POLL: Which Spacecraft Was The First To Successfully Land on Mars?

What do you know about space travel? Maybe you remember a craft landing on Mars of July 1976? What was that spacecraft called? It performed a biology experiment whose purpose was to look for evidence of life on the planet! Pick your answer below and then check to see if you got it right. Don't forget to share with your friends on social media and leave us a comment down below too!

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